Yes, I always train my arms in a pair of 5 inch platform heels!  That way, I can get a little extra calf work in!   
If you do, your seriously interfeering w/ a lot of guys concentration... ANd they dont care a bit 

That Reminds me, THIS is My Favorite womens weight training movement in the gym...
Cable kick-backs w/ a ankle strap, bent over a Low bench... 

This one causes a Lot of teeth grinding and guys muttering to ourselves...