I found the whole social aspect incredibly tiring.
Dress appropriately (stockings, heels) with ladylike posture (not slouchy etc)
Remain friendly , smiley and happified at all times, greeting everyone you see, pretending not to be annoyed if someone continually kicks your seat.
Stay in your seat in your "good" clothes trying to eat you packed lunch out of your lap, while still maintaining a ladylike posture.
Maybe I just had difficulty remaining ladylike for so long lol.