Can you figure out this riddle?

[Mr V's Food Dude]

What is it that a man should do standing up, a woman can do sitting down, and a dog does with one leg up in the air?

 

[crazy cool =]]

i dont know
this is hard to guess????

=]

 

[Orange U glad 2 C Me?]

Sounds like going wee wee.

 

[Star of Fla]

Shake hands

 

[Brambles]

*shakes your hand*
good one. : )

 

[Sophee]

pee. duuuhh.

 

[Mystika]

Shake hands/paws.
edit: Damn, Star of Fla beat me to it!

 

[That Guy]

eat pizzA

 

[Run PHATGIRL run]

butt secks?

 

[Black Rectangle]

pay the bus driver?..

 

[►JayJay◄]

Hmm that's a tough one, make the next one easier please