first off you must be able to conceal it... not hide it... just draw the refs attention to another part of your body, then get the ref to call you neutral.... then whil they're scavvaging around you looking for shots; make like some one has just shot you. at which point you reveal your fiendishly hidden shot to the ref, who, ofcourse, wipes you down cos you are neutral....
sadly not many refs do neutral calls nowadays....
but yeah.. never flinch... never use your hands...if you cant lose it, hide it.. deal with it later...
specta