[CourtJester]

Hand 1: Dont C/r, just bet out and hope to 3 bet, lead turn if he caps and if its heads up call down, if there are more players raise, you have 10 outs to improve if he has JJ or KK
Hand 2: Depending on UTG2's stats, i might raise pf to isolate, with how you played it, i think a river value bet is good (i dont think i want this checked through), and call a raise.
Hand 3: Hopefully its a good loose table that this limp is good, post flop i think the only way you're winning this pot is raising somewhere, and w/o reads i think its a fold on the flop, a 5 high flush is nothing to be proud of.
Hand 4: You have to open raise KQo, the hand plays differently after that, if button is still aggresive after that and when i cap the flop, calling down should be fine, reads are very useful here aswell.