1. Cheers
2. Ta
3. That's great
4. Cool
5. OK
6. Brilliant
7. Lovely
8. Nice one
9. Much appreciated
10. You star
11. All right
12. Fab
13. Awesome
14. Wicked
15. Merci
16. Danke
17. Gracias
18. Super
19. Ace
20. Thank you

As per a poll by serial meaningless pollsters www.onepoll.com on behalf of 'that teddy bear card company' www.metoyou.com and reported in the Express, Mail and Metro.

Cheers.