First orbit. Villain is 18/9 over 11 hands FWIW

Poker Stars $0.05/$0.10 No Limit Hold'em - 9 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

CO: $1.15
BTN: $5.80
SB: $6.95
BB: $17.70
UTG: $17.85
Hero (UTG+1): $10.25
UTG+2: $10.00
MP1: $7.35
MP2: $4.50

Pre Flop: ($0.15) Hero is UTG+1 with 8 8
1 fold, Hero raises to $0.30, 2 folds, MP2 calls $0.30, 3 folds, BB calls $0.20

Flop: ($0.95) 5 4 5 (3 players)
BB checks, Hero bets $0.50, MP2 folds, BB calls $0.50

Turn: ($1.95) 3 (2 players)
BB checks, Hero???

Bet .75 on the turn planning to fold to a c/r or a big bet on the river, or check behind on the river if the turn is called and the river is checked. You make overcards pay a little more to see the river without blowing them off the hand with a larger bet. You make 66-77 pay a little more. You can fold to a c/r on the turn. I think checking behind is unlikely to induce a bluff on the river from missed draws since I doubt missed overs will bluff a missed river if you check the turn, and there just aren't a lot of draws on the flop other than 67s (that made a straight on the turn anyway).

I bet more on the flop in a 3-way pot. In this spot I'd prefer to just take it down there then get deeper into the hand. There are so many hands a caller could have on this flop: straight draw (76), trips (A5), a boat (44), an underpair you beat (22, 33), an overpair you beat (66, 77), an overpair that beats you (99-QQ, assuming KK/AA would 3-bet).

As played I probably just check behind for pot control. At that point there are actually very few hands you beat that would call the flop (22, 66, 77) and on that board you're not going to fold out better hands with a bet. I check, hoping to get to showdown without committing more money but planning to call a smallish river bet.