Anyone else watch the MTV awards and think that Kristen was the perfect person to play Bella? I know I did...once the laughter had subsided...
Rule no.1: If you get nervous easily, place your hands firmly by your side, away from any objects that are fragile or haven't previously been glued into place.
Rule no.2: If you failed to act in accordance with rule number 1, and as a result, managed to knock/drop a surrounding object, don't run after it! Play it off - preferably with a joke - to minimise humiliation.
Rule no.3: Last, but definitely not least, if you've already committed all the above mistakes, there's no point hiding from them, so, whatever you do, don't attempt to run afterwards - you've already embarrassed yourself, so there isn't much point.