on the third hand bet close to a psb on the flop becuause if someone has an ace or qj..even a Tx--KK, then they call a psb the same frequency as a 1/2 pot bet. turn and river are read-dependent but generally ok (prob 1/2 pot on river). btn folded a draw like qj/97.

4th hand, raise $2+ on turn fast. river check is ok with ur read. two pair is coutnerfeit and no value from draws.