>Two-finger challenge

A fun variation to help with this exercise is to place your hand on a tabletop and get a friend to call out random pairs of numbers – say, ‘2 & 5’, or ‘1 & 4’ – then lift up only the corresponding pair of fingers, keeping the others flat on the table. This can be quite a challenge, even for experienced players! After a bit of practice, you can do one hand at a time, or both at once if you want to make things more interesting.