AA on the button, what's my river action?

[Ulkis]

No reads on the villain except he entered the game about 2 orbits ago, and in that time went AI 2 times doubling up both times. Very active, VPIP seems to be high. Saw the villain fold to a flop c/r 2 times and did that to him successfully once myself. My take on him is likes to represent aggression but when push comes to shove, crumbles like a cookie. So based on my read he becoming a calling station and me not wanting to commit I get suspicious. Advice welcome on all streets.

PokerStars $0.05/$0.10 No-Limit Hold'em - 8 players
Hand Converter Tool from DeucesCracked.com

MP1: $3.15
MP2: $30.65
CO: $9.85
Button: $8.55
SB: $12.80
BB: $12.85
UTG: $13.25
UTG+1: $9.75

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img]
UTG folds, UTG+1 folds, MP1 folds, MP2 calls $0.10, CO folds, <font color="#FF0000">Hero raises to $0.50</font>, SB folds, BB folds, MP2 calls $0.40.

Flop: ($1.15) 6[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#FF0000">Hero bets $0.80</font>, MP2 calls $0.80.

Turn: ($2.75) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#FF0000">Hero bets $2</font>, MP2 calls $2.

River: ($6.75) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, Hero ?