Imagine you are shoveling crisps into your gob!
Put your right fingers in front of your left fingers - knuckles forwards - and tap.
Throw both hands out to the side - as though you are saying 'I'm done!'
This one is an easy one - imagine you are peeling a banana.
Use your hand to create a cup shape and then take a slurp. Fancy a brew?
Tap your left hand on your right elbow - I am not sure why... Does anyone know why this is the sign for biscuit?