[Soh]

Hand 1: Folding to any raise on the river is fine, unless, maybe, you're the only one left, like bet, you call, raise, the better fold, and it's to you.

Hand 2: Check the turn. You either beat and have to pay or way ahead that you aren't afraid of giving a free card. If you make a boat, you probably can get extra bet there.

Soh