In hand 1, I like taking him to value-town if you think he's trying to showdown something drawing pretty much dead to your trips. However, I think he's good for a lot more money. $10 on the turn and $10 more on the river works. However, if he's realy terrible just try to get it all-in by going $12 on the turn and sticking the rest in on the river.

Hand 2 is standard.