villain is 30/10/1.2. What's the optimal way to proceed from turn on? Sometimes i dont really want to overcommit in small pots.

PokerStars Pot-Limit Hold'em, $1.00 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($31.40)
MP1 ($97.20)
MP2 ($20.50)
MP3 ($102.05)
CO ($98.50)
Button ($114.25)
SB ($97.50)
Hero ($97)
UTG ($102.40)

Preflop: Hero is BB with 6, 7.
1 fold, UTG+1 calls $1, 2 folds, MP3 calls $1, 2 folds, SB completes, Hero checks.

Flop: ($4) 7, 6, 4 (4 players)
SB checks, Hero bets $2.5, UTG+1 folds, MP3 raises to $6.05, SB folds, Hero raises to $20, MP3 calls $13.95.

Turn: ($44) 5 (2 players)
Hero ?