live hand--angling?

[Walker]

MP doesn't raise very many hands. He's an unsophisticated irrational nit. I haven't seen him bluff. He would check this flop with a big ace.


I limp A [img]/images/graemlins/diamond.gif[/img]9 [img]/images/graemlins/diamond.gif[/img] in EP, a caller or two and MP raises, BB calls, I call.

(8SB)Flop: A [img]/images/graemlins/spade.gif[/img]J [img]/images/graemlins/heart.gif[/img]J [img]/images/graemlins/diamond.gif[/img]

Checked to MP who checks

(4BB)Turn: [img]/images/graemlins/heart.gif[/img]

I bet, MP calls

(6BB)River: a brick

I doubt he calls with a pp here so it's either check/call or check/fold. I'm leaning towards the latter, but I'd really like a free showdown. Given that this guy is so unsophisticated what tricks (ethical or not) can I use here. How about making like I think I'm last to act and flipping over my cards? That would eliminate a bluff, but technically could my hand be declared dead? Am I overthinking this [censored]?