Collect a small bundle of wrappers up, form them into a chocolate shape, wrap it up neatly and put it back it. It's highly convincing and everyone will hate you.
I prefer doing this with after 8 mints. Watching people hunting through empty sachets looking for the few remaining mint fondant chocolates is one of the joys of Christmas.
People who put empty wrappers back in boxes of Quality Street and raise my hopes. Especially when the bin is around 15cm away from the box.