josh has always been sober at every party since the loss of his sisters—he wanted to be sure he's in control. he'd be by himself, smoking a whole pack of cigarettes once the alcohol comes out
then chris would plop down beside him with a slurred "heeeeey man" and Josh's flat "yeah" "i get it, man" when he had to listen to Chris's drunken ramblings
if it was sam, he'd immediately stub the cigarette out to the ground. he knew she hated the smell—was against smoking altogether because well, it kills you. and sometimes... sometimes when it was really just the two of them, he'd put it out on his arm, waiting for her to freak. she didn't. but he knew it made her scared for him
also, i can imagine him driving a sick jess to a pharmacy that's an hour away at 2 am because he's the only one capable to drive atm. and everyone thought they "got together" somewhere. they're the two people in the group that flirts like its a sport, so it wasn't that surprising to them