[Tryptamean]

In both of your examples I never raise unimproved at any point in the hand.

Hand 1: I would call here and possibly calldown if no straight of flush cards come in. I would b/f turn if he checks to me.

Hand 2: I would call here and call any turn card. I may or may not call a river bet, but I'm usually folding to a river bet and hoping for a free showdown.

I'm not incredibly confident on my answers here, but I wouldn't fault anyone for calling both of there down or folding the turn on both.