you don't have to have a bouldering pad to boulder, but it really is worth taking an offcut of carpet, or a doormat or a car mat so you'll always have something dry to stand on - it goes without saying that trying to climb with your shoes covered in wet mud and sheepshit just ain't a good look.
Some useful phrases to get you quickly integrating with other boulders:
"Yo yo yo I just iced that shit like a 3-tier wedding cake"
"Tight jon, tight"
"Yo punk bitches, spit some numbers at a wigga, one time"
"I'm Si O'Connor, who the fuck are you?"