AQ on button vs tag in BB

[1C5]

Was on a few tables, stats were something like 20/15.

Thoughts?

Now what? What kind of hand do you put him on with all his checking...smaller-mid pp? Can I bluff river?


PokerStars No-Limit Hold'em, $1.00 BB (4 handed) Hand History converter Courtesy of PokerZion.com

SB ($169.20)
BB ($182.70)
UTG ($150)
Hero ($120.35)

Preflop: Hero is Button with Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $4</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">BB raises to $12</font>, <font color="#CC3333">Hero raises to $34</font>, BB calls $22.

Flop: ($68.50) K[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Turn: ($68.50) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: ($68.50) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero?