AQ iso, facing river pot donk

villain is loose 40-8 and likes to call
fold to the river shove simple?
other streets?

$0.10/$0.25 No Limit Holdem
9 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($68.40) 274bb
UTG+1 ($15.78) 63bb
MP1 ($25) 100bb
daven (MP2) ($30.80) 123bb
MP3 ($26.23) 105bb
CO ($12.41) 50bb
BTN ($25) 100bb
SB ($11.22) 45bb
BB ($17.50) 70bb

Pre-Flop: ($0.35, 9 players) daven is MP2 :qc: :as:
UTG calls $0.25, 2 folds, daven raises to $1.10, 3 folds, SB calls $1, 1 fold, UTG calls $0.85

Flop: :7d: :ah: :3s: ($3.55, 3 players)
SB checks, UTG checks, daven bets $2.60, SB folds, UTG calls $2.60

Turn: :6d: ($8.75, 2 players)
UTG checks, daven bets $5.80, UTG calls $5.80

River: :6c: ($20.35, 2 players)
UTG bets $20.35,

There aren't any obvious busted hands and a six fits. I think its a fold. You'll even see straights and boats here a good amount. He'll probably have something dumb from time to time but 33% is a tall order.

I'm folding. He has no air, and he could definitely be slow playing monsters on such a dry flop and not raising so that he doesn't blow out any hands.

loose passive player
wakes up with large river bet
you better watch out

This is a wicked spot . I say fold, but in play I can make a call here and be pissed when he s got: 45, 33, 77 a6.

Do timing tells ever help anyone in a river spot like this?