Once upon a time I worked at an Irish pub.
There, I learned the most efficient way to clean a ketchup bottle top (soak it in hot water).
I learned how to pour a perfect pint with a shamrock on top (magic).
I learned how to stay awake for shifts that ran until 4am (chug a shirley temple with a splash of OJ in it at 11pm, brush your teeth at 1am for a quick minty rush).
I learned how not to have to make both decaf & regular (just make decaf, nobody can tell and placebo caffeine is real).
I learned how to direct attention toward my money making asset (neon orange bottle opener in my back pocket).
I learned how not to get caught kissing boys during my shift (behind the dumpster out back #classy).
I learned how to make everyone in a room feel special at once (remember what everyone drinks, always keep extra bud lights on ice for Tom, chill the stella glass for Kenny, play Marshall Tucker Band when Mark walks in, blow lots of kisses, don't forget the ice on the side!)
I learned how not to throw up behind the bar the day after my first St. Paddy's day as a legal adult (ginger ale + bitters with a side of oyster crackers).
I learned how to hack the menu that I'd been eating from for four years straight (tacos - meat + sweet potato fries = new secret menu item for all of the hippies at the bike store down the street & me).
I learned how to get the kitchen guys to sneak me sweet potato fry tacos on demand (giggle often, bat lots of eyelashes, try and speak spanish, send back ice water every half hour in the summer, salsa dance with them on slow shifts).