Managers hire the girl they're sure will show up

Quick answer: Nobody expects a 15-year-old to have experience. The manager wants to know one thing: will you show up, on time, every time? Answer that in the interview, prove it in your first two weeks, and the extra shifts come to you.

Picture a café at 12:15 on a Saturday. The line's out the door, the espresso machine is screaming, and a girl walks up to the counter to ask if they're hiring. She's polite. She's dressed nicely. And the manager, who's making four drinks at once, will forget her face before she reaches the parking lot.

Now picture the same girl walking in at 2:30 on a Tuesday. The place is quiet. The manager actually has time to talk. Same girl, completely different result.

That's most of getting your first job. It isn't about being impressive. It's about being the obvious, easy, safe choice.

Walk in when they're slow

Most places that hire teenagers, like restaurants, grocery stores, ice cream shops and garden centers, still respond well to someone who shows up in person. Apply online if that's how they do it, then stop in to follow up.

Go between lunch and dinner, roughly 2 to 4 p.m. on a weekday. Ask for the manager by title, not "whoever's in charge." Bring a simple one-page sheet with your name, phone number, school, grade, any volunteering or babysitting, and the most important thing on it: your availability, written out by day.

Availability is what managers of teen hires care about more than anything. "Monday, Wednesday after 4. Saturdays all day. Not Sundays." Be honest. If you've got practice three days a week or family commitments, say so now. Overpromising and then canceling is how you lose a job in a month.

The interview is really one question

Whatever they ask, they're trying to figure out whether you'll be a problem. So you're going to answer like someone who won't be.

You'll probably hear some version of these:

• Why do you want to work here? Be specific and real. "I'm saving for a car and I like that it's busy here" beats "I'm a people person."
• Tell me about a time you handled something hard. School counts. Sports count. Babysitting three kids at once absolutely counts.
• What would you do if a customer was rude? Stay calm, stay polite, get a manager if it goes past what you can fix.

Arrive 10 minutes early, not 30. Thirty is awkward for everyone. Dress one step nicer than the uniform you'd wear. If they wear polos, wear something with a collar. Put your phone away before you walk in, not during.

Then ask them one question at the end. Try this: "What does someone do in their first month that makes you glad you hired them?" It shows you're already thinking about doing the job well, and the answer tells you exactly what to do.

If you haven't heard anything in four or five days, call or stop by once. Once. That isn't pushy. That's someone who follows through, which is the whole point.

Your first two weeks are the real interview

Getting hired is step one. The schedule for next month gets written based on how you act right now.

The girls who get more hours do a handful of unglamorous things:

• They show up five minutes early, ready to work, not walking in at the exact start time still tying an apron.
• Their phone stays in a locker or a bag. If you need help with that habit, this piece on getting your hours back is worth ten minutes.
• When there's nothing to do, they find something. Wipe the counter. Restock the cups. Face the shelves.
• They ask a question once, then write the answer down so they don't have to ask again.
• At the end of a shift, they leave their station cleaner than they found it, even when the person before them left it a mess.

That last one gets noticed more than you'd think. The girl who stays an extra two minutes to stack chairs or refill napkins is the one the manager trusts with a closing shift and, eventually, a raise.

Say yes a lot, but not to everything

You'll get texts asking you to cover shifts. Say yes when you can. Helping your team is part of being good at your job, and people remember who bailed them out.

But you're also allowed to say no. If it's the night before a test, or a family dinner, or you've already worked four days this week, "I can't this time, but try me next week" is a full answer. You don't owe anyone a long explanation. A boss who respects you will respect that, and one who punishes a polite no is telling you something. Deciding what you're worth before somebody else does applies at work too.

Know the basic rules for your age. Under U.S. federal law, if you're 14 or 15, you can't work more than 3 hours on a school day or 18 hours in a school week, and not before 7 a.m. or after 7 p.m. during the school year (9 p.m. in summer). Your state may have stricter rules, and Canadian provinces set their own. If a schedule looks wrong, ask a parent to help you check.

When something at work isn't right

Most workplaces are fine. Some people aren't. So here's the line, plainly.

Tell a parent or another trusted adult the same day if any of this happens:

• A manager asks you to clock out and keep working. That's unpaid work, and it's against the law.
• A coworker or boss, especially an adult, texts or messages you about things that aren't work, wants to follow you on social media, or asks to hang out outside of work.
• Someone comments on your body, offers you a ride home, or asks you to keep something "between us."
• You're asked to do something that feels unsafe, like working alone late or using equipment nobody trained you on.

You will not be in trouble. You didn't cause it, and telling isn't overreacting. A good parent would far rather hear "this felt weird" ten times than miss the one time it mattered. If you haven't already, write down your standards before anyone tests them. It makes these moments much easier to recognize.

Why your first check looks smaller than you expected

You'll do the math in your head. Say you worked 12 hours at $12 an hour. That's $144. Then the check shows up and it's less, and it feels like someone made a mistake.

Probably not. Your pay stub shows two numbers:

• Gross pay is what you earned before anything comes out. That's your $144.
• Net pay is what actually lands in your account.

In the U.S., 7.65 percent comes out for Social Security and Medicare. On $144, that's about $11, so you're down to roughly $133 before any income tax is withheld. In Canada, you'll see CPP and EI instead.

When you're hired, you'll fill out a W-4 form that decides how much federal income tax gets withheld. Sit down with a parent for that one. Many teens who earn only a little end up getting some or all of that withheld income tax back by filing a return, but every situation's different, so a parent or a tax professional is the right person to walk you through it.

One more habit: keep your own note of every shift you work, with the date, start time and end time. When the stub comes, check the hours. Payroll mistakes happen. If something's off, bring your note to your manager and ask politely. Nobody minds an employee who keeps good records.

That first check will be small. You'll look at it anyway, probably more than once, because it's the first money in your life that's entirely yours. You earned every dollar of it by being the person who showed up.