Are smiles contagious?

Related questions

1. Can smiling change your mood?
2. Does smiling relieve stress?
3. Why is yawning contagious?
4. How much money did the smiley face make?
5. Does smiling make you look older?
6. What is a real smile called?
7. Does smiling give you wrinkles?
8. What is a smile?
9. What it means to smile?
10. How does Smiling change your brain?

Tags

1. #because
2. #feelings
3. #experience
4. #other
5. #empathize
6. #allows
7. #unconsciously
8. #makes
9. #instinct
10. #contagious
11. #smile
12. #shows
13. #evidence
14. #facial
15. #smiles
16. #people
17. #growing
18. #frowns
19. #smiling
20. #better
21. #everyone
22. #consciously
23. #mimicry