Sorry about the formatting and hand history, I just played this hand on bovada zone poker so I don't have the actually history file until tomorrow. Anyway

5nl zone
Hero is BB with Q7hh
UTG folds
MP min raises to 0.10
Folds to hero who just calls

Flop - 0.22
9h 8h 6h

Hero checks. My thoughts on checking here was to conceal the strength of my hand. I didn't want villain to fold if I made a bet. This board didn't really hit a range where I feel villain is calling my bets a lot, and folding to most Cbets.
Villain bets 0.11
Hero calls

Turn - 0.44
2h
Hero checks. I got a little worried since I was crushed by any suited ace or King. I still was going to call. Facing a min raise though I also thought he could be set mining/a bad player
Villain bets 0.44
Hero calls

River -
6d
Not really too scary of a card for me, but I still checked. I think this is where my issue was and I missed out on a lot of value, that is if villain were to call. Villain checked back.

So my questions:
1. Should I be check/raising the turn? I feel like that may look strong but if villain picked up a flush he may come along.
2. Should I have went for a value bet on the river? I feel like that's where my biggest mistake was.