Raise this on flop or wait 'till turn?

[Yako]

Villain is 10.5/2.5 after 35 hands. He's weak/tight

Party Poker 0.5/1 Hold'em (8 handed) converter

Preflop: Hero is Button with 4[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, MP1 calls, <font color="#666666">1 fold</font>, CO calls, Hero calls, <font color="#666666">1 fold</font>, <font color="#CC3333">BB <font color="#A500AF">(Villain)</font> raises</font>, UTG+1 calls, MP1 calls, CO folds, Hero calls.

Flop: (9.50 SB) 4[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Villain bets</font>, UTG+1 folds, MP1 calls, <font color="#CC3333">Hero raises</font>, Villain calls, MP1 calls.
I figured that Villain, being a mouse, was betting and overpair, and I wanted his to reraise me so I could call and then raise him on the turn. Since he's a mouse, I should just call this, bringing other people along for the ride, and raise on the turn right?

Turn: (7.75 BB) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Villain checks, MP1 checks, <font color="#CC3333">Hero bets</font>, Villain calls, MP1 folds.

River: (9.75 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Villain checks, <font color="#CC3333">Hero bets</font>, Villain calls.

Final Pot: 11.75 BB