What is a good facial expression for street walking?

I need a good facial expression for walking down city streets, I want to look friendly, but not like a chump. Suggestions?What is a good facial expression for street walking?
Try not too look to happy or too angry or even too sad, strike a balance in between.What is a good facial expression for street walking?
You could always cultivate the look I have in my avatar... it's ';street'; comfortable and won't get you mugged or molested !
frown, open your mouth and pant aggressively! this should reward you with friendly gestures from fellow city street walkers





no seriously
Make sure your back is really straight and your top teeth overlap your bottom lip





And make sure you squint your eyes and squeeze your nose
How bout one eyebrow up, one eyebrow down, one hand reaching for your inner breast pocket?
:-?
How about the one your avatar has.
I like to wear a nice scowl....
Smug face :D
Hang your tongue out.
how about this :)
take a look at zoolander.


and try to copy his model face :D