punching in is really easy the hardest part to remember honestly is the code number that you punch in to say that it's you.
"Ring" (abbreviated RNG sometimes) is the one you use to punch in/out of shifts and in/out of lunch/breaks. You can punch "Inquiry" or INQ to see when you punched last and how many hours you have worked that week. Use that in case you're hesitant to leave because you forgot if you punched out or not. If it says the time that you punched out then you're good. When there's training meetings (ex: Great People week, etc.) they'll explain the proper way to punch in and out of training hours.
If you forget to punch in or are restricted, then notify the front desk people or management so they can override your punch and punch you in. Punch normally for lunch and breaks after that. It's important to let them know when you first get there so you know that you are getting paid.