Most owners seem to oppose pocketing their Curve, but for some it's doable. Depends largely on your pockets. You could also consider a case (there are many) that seals your device completely for while it's in your pocket. Stear clear of the skin cases though as they won't help you much.
Lastly, if you're a smoker then avoid pocketing it completely. Put your Curve in a pocket that's a had a pack of cigarettes in it and it'll come out covered into tobacco. ...happened to me.