Yes, for the love of god, wear shoes that're made to be walked in for long hours. I bought new sneakers specifically to wear for my job when I got hired a few days ago to clean the movie theater during 3rd shift. Just last night (from midnight to 7 a.m.), my 3DS said I walked over 11,000 steps, which was due to constantly going back up & down the stairs sweeping then mopping the seat rows & such.
& don't be afraid to ask questions, even for the smallest thing. That's what you're suppose to do when you're being trained.
Also have to say, Harvey Birdman seems to be a decent show, though we all decided to stop watching Sealab 2021 during our break.