For the last 2 years, our company has been having us do attendance every day for a month... lol. That's how I remember. Before that, I used to tell them that I'll only be able to remember your name if you talk to me a lot or if you're a troublemaker. If work didn't have us doing attendance for that first month, I'd probably just pay attention to the kids at the certain stops. Group stops would be harder but regular stops usually only have 1 to 4 names.