Hand 1 - Definitely agree with lockpull. I probably would have bet .20 PF. I know that's 10XBB which is way too heavy, but I find that people at $2NL will call with shit if you don't raise past .16.

Hand 2 - I would have raised his flop to see how he would react (if he re-raised I'd fold, if he called, I'd re-evaluate on the turn).

Hand 3 - Good job!