Do Any Bio Guys Do This?

[Radar]

That costume has to be awful hot to relax in.

He can handle it because he has a little alot of Captain in him.

[Lee]

Heh, wouldn't that make him warmer, Radar?

[Radar]

Not after he reaches the point he doesn't care.

[GnomeKid]

Some do.  Men will typically cross their legs by putting one ankle up on their other knee forming a sort of leg triangle while women typically will go knee to knee/thigh to thigh. 
at least thats my general thoughts on the whole thing

[Lee]

I was in a movie theater today, and the rest of my row was full of college to middle aged women.  (The film was about a lesbian ballroom dancer, and the theater was mostly full of women.)  Looking down the row, I realized that I was the only one without my legs crossed.  Everyone else had their left knee crossed over their right one. 

[Cruelladeville]

Depends on how inherently Alpha they are....

I once had a sail instructor... who used to sit legs wide a kimbo.... and he'd wear khaki shorts with his crown-jewels oft on display...

And yes when he was around women he fancied knew exactly what he was showing.....lol And would grin accordingly....