Telepathy by Yu Hojin

You are a master detective! While your back is turned, 5 spectators write down a word of their choice on a piece of card and it is sealed back into an opaque envelope.

The envelopes are then mixed well, so you and your audience cannot know who wrote any particular word. However, through your amazing body language reading skills, you will be able to match the words inside the envelopes with each spectator.