Haven't played poker in 2 years and this was the most interesting hand from a day of playing again. Feeling pretty rusty so interested in critique on my thought process. I spent more time thinking about the ez fold and not much time thinking about turn bet or river check, are they standard?

If I were him I'd check backs Qx, 2pair and sets on the river, leaving a v polarised betting range. Seems p unlikely he is turning Qx into bluffs, more likely he is badly value betting if he does show up with them. What bluffs does he have except AK, A4?. What would his value range be apart from just 56s? Those ranges would mean 2 bluff combos and 3 value combos so calling wins 40% of the time, more than the 30% we need. As it's 2nl we dunno wtf he is really doing but its educational anyway. thanks.

PokerStars Zoom, Hold'em No Limit - $0.01/$0.02 - 6 players

UTG: $4.37 (219 bb)
MP: $0.41 (21 bb)
CO: $2.40 (120 bb)
BU: $2.05 (103 bb)
SB: $2.47 (124 bb)
BB (Hero): $2.00 (100 bb)

Pre-Flop: ($0.03) Hero is BB with K♣ K♦
2 players fold, CO raises to $0.06, 2 players fold, Hero 3-bets to $0.19, CO calls $0.13

Flop: ($0.39) 4♣ 7♠ Q♥ (2 players)
Hero bets $0.17, CO calls $0.17

Turn: ($0.73) 8♠ (2 players)
Hero bets $0.40, CO calls $0.40

River: ($1.53) 6♣ (2 players)
Hero checks, CO bets $1.15, BB (Hero) folds

Total pot: $1.53 (Rake: $0.05)
CO wins $1.48

Make it bigger pre, imo V can valuebet the river thinner because you almost never have a straight here