And another:

Vil seem tagish but only had 50 hands. Given his call in the blinds and check on the flop I can see enough 8s or even two pairs if he does this with them.
So what do I beat, diamonds, his straight draws either get there or pick up showdown value.

Also seeing I'm still working on my preflop range, is a flat against a 19/12 with 0 3bet and opening 22% from cut off pretty standard?

BTN: $3.57
Hero (SB): $2.00
BB: $4.06
UTG: $3.31
CO: $3.67

Hero posts SB $0.01, BB posts BB $0.02

Pre Flop: (pot: $0.03) Hero has K T

fold, CO raises to $0.08, fold, Hero calls $0.07, BB calls $0.06

Flop: ($0.24, 3 players) K 6 7
Hero checks, BB checks, CO checks

Turn: ($0.24, 3 players) 9
Hero bets $0.16, BB calls $0.16, fold

River: ($0.56, 2 players) 5
Hero bets $0.20, BB raises to $0.67, ?