This game is great fun and helps to improve your child's vocabulary and language skills. You can play it anywhere - I find it particularly useful as a distraction when we're going around the supermarket.
The idea is to get your child recognise and identify objects/people/parts of their body correctly. For example say something like "Where are your feet?" and see if they can point to them. Keep it light hearted and fun, don't worry if they get it wrong - just say "They aren't your feet, your feet are there!" and point to them or tickle them.