Villain was 22/6 with an AF of 1 over about 40 hands. Being crap, I didn't check his AF before I called the river. I found it very hard to place him on something that flopped hard, since the board is so drawy, but then of course he was super passive.On the flop and turn I put him on draws and draw pair combinations, and bet the river in hope of getting a call from a draw pair combo. On the river I couldn't really put him on anything that wasnt improved by that ace, so I called expected to see A6 and A4. Criticism on how the hand was read on the flop and turn is also welcomed.
Full Tilt Poker $0.05/$0.10 No Limit Hold'em - 6 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

MP: $10.00
CO: $13.69
Hero (BTN): $10.00
SB: $9.55
BB: $42.34
UTG: $10.69

Pre Flop: ($0.15) Hero is BTN with A 7
3 folds, Hero raises to $0.30, SB calls $0.25, 1 fold

Flop: ($0.70) 6 4 7 (2 players)
SB checks, Hero bets $0.50, SB calls $0.50

Turn: ($1.70) Q (2 players)
SB checks, Hero bets $1.20, SB calls $1.20

River: ($4.10) A (2 players)
SB checks, Hero bets $2.60, SB raises to $7.55 all in, Hero calls $4.95

TBH I have no idea as I have the same problems at this level. I think I would play it the same he may bluff missed flush draws or c/r weaker pair hands thinking you are FOS.

I would like to hear other advice.

I don't think there is another way to lay that hand. But I am betting less on the river he cannot really have a strong hand and u are betting like insaine

I think it's fine.

Interesting. Everything seems fine. Folding the river would be meh. But I suppose someone can (and will) say what villain was playing with and make it easiest fold ever. AQ? QQ? flopped set?

well played

I have a hard time putting him on a hand. Surely he would raise with a set on the turn with this board (flush draw and 3 card straight out)

yeah, slowplaying sets sounds weird. but being that passive, its not impossible?

Kinda looks like a float that hit the ace. Think calling is a good option.

You are calling 4.95 to win 14.25 so you need:
4.95/(4.95+14.25)=26% equity to call.

It's not unusual to see a passive player slowplay a set on a wet board, so you can't just rule them out, although he should be raising the flop or turn at least some of the time. You're also not going to see a player like this bluff all that often.

Even with a pretty pessimistic range though, we get these results:

I've given him all of the QQ, 77, 66, 44, AQ, A7 combos and a few random bluffs and we still have 25% equity.

The bluff combos account for times when he spazzes w/ Ax and gets his money in bad. If we also consider that at least some of the set/2-pair combos aren't going to get to this spot b/c he raises at some point, I think we can call here.