2. Barack Obama shakes hands with a man in a horse mask.

3. Barack Obama shakes hands with a man in a horse mask.

4. US President George W.Bush (L) shakes hands with his Russian counterpart Vladimir

6. Britain's Hannah Miley shakes hands with Stephanie Rice of Australia at the 2008 Beijing Olympics

8. Bushcraft expert Steve England 'shakes hands' with a wild grey squirrel in Stoke Park, Bristol

10. A robot shakes hands with human

12. Russia's Maria Sharapova (R) shakes hands after victory in her women's singles match against Canada's Eugenie Bouchard

14. A special aquarium in Japan has a otter that you can shake hands with him.

16. Kate Middleton shakes hands with a policeman.