Friendly! Reese gets a positive feeling from Cooper. It's not too positive as to make Reese drop everything and be his buddy, but he won't mind talking to the guy if he has to. He's also amusing, which Reese likes.

He needs to talk to Cooper more to get a more decent impression, but at the moment he kind of likes him! Which is good, you don't want Reese to hate you because that would be bad.