Darry - won't let anyone else touch the grill and is wearing an uncle sam hat
Two-Bit - flat out drunk, wearing the flag as a cape chanting USA
Dally - is throwing pop-its at people's feet, eating all the chips
Steve - is in charge of the fireworks, almost catching the house on fire
Soda - trying to stick lit sparklers in people's back pocket
Johnny - has a tiny American flag in each hand, standing like the mascot for the group waving the flags
Pony - reciting the declaration of independence for the fifth consecutive time
A/N found this one online, credit not mine