Massage or Push?

[Aukai]

My standard play on this river in the past has been to bet out about $15-20 or so to try and induce a crying call, but thinking about it, maybe that's been costing me money. Is this push a viable play (given zero read), or should I stick to my old plan and go for a smaller, more often called bet?

First orbit at the table, no reads yet.

Party Poker No-Limit Hold'em, $ BB (8 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

saw flop|<font color="#C00000">saw showdown</font>

MP2 ($11)
CO ($50.75)
Button ($36.64)
SB ($107.42)
BB ($46.5)
Hero ($47.5)
UTG+1 ($40.1)
MP1 ($41.7)

Preflop: Hero is UTG with 8/images/graemlins/spade.gif, 8/images/graemlins/heart.gif. SB posts a blind of $0.25.
Hero calls $0.50, <font color="#666666">3 folds</font>, <font color="#CC3333">CO raises to $1</font>, <font color="#666666">2 folds</font>, BB calls $0.50, Hero calls $0.50.

Flop: ($3.25) 3/images/graemlins/diamond.gif, Q/images/graemlins/spade.gif, 8/images/graemlins/diamond.gif <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets $2</font>, CO calls $2, BB folds.

Turn: ($7.25) 4/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, <font color="#CC3333">CO raises to $12</font>, Hero calls $6.

River: ($31.25) 4/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
Hero pushes 32.5, CO folds.

Final Pot: $31.25

[jkkkk]

ahhhh i'm weak, i'd probably massage and hope for a raise.