Also, I found that after each mission, the first thing I would do was to go and talk to Joker first -- you will miss unique dialogue opportunities with him otherwise in ME2 (and with him and EDI both in ME3) as many times he'll have something unique to say about each mission or new crewmate you bring aboard.
At this point, I just always start with Joker after returning from a mission, then circle through the ship. There are some surprisingly in-depth conversations available with characters like Samara, Garrus, Thane, and even Kelly even if you don't romance them.
I also loved catching whatever latest thing Gabby and Ken were bickering about too.
And there's also so much fun additional dialogue potential when you mix up squadmates on missions, too.