Very early in my session. Villian has floated me (I think) previously. Trying to c/bomb the turn.

Ultimate Bet No-Limit Hold'em, $.25 BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($34.21)
UTG ($4.05)
Button ($27.36)
Hero ($28.28)

Preflop: Hero is SB with A, Q.
1 fold, Button calls $0.25, Hero raises to $1.1, BB calls $0.85, Button folds.

Flop: ($2.45) Q, A, 9 (2 players)
Hero bets $2, BB calls $2.

Turn: ($6.45) 7 (2 players)
Hero checks, BB checks.

River: ($6.45) K (2 players)
Hero should do what?