This is my first button at this table, I don't know anyone. Comments on all streets appreciated. Note stacks.

$0.25/$0.5 No Limit Holdem
6 players
Converted at weaktight.com

Stacks:
UTG ($47.75)
UTG+1 ($19.25)
CO ($9.15)
Hero ($49.25)
SB ($30.15)

Pre-flop: ($0.75, 6 players) Hero is BTN
1 fold, UTG+1 calls $0.5, CO calls $0.5, Hero raises to $2.75, SB calls $2.5, 1 fold, UTG+1 calls $2.25, CO folds

Flop: ($9.25, 3 players)
SB checks, UTG+1 checks, Hero bets $6, SB calls $6, UTG+1 calls $6

Turn: ($27.25, 3 players)
SB checks, UTG+1 checks, Hero bets or checks?