Smile animation
<a href="//commons.wikimedia.org/wiki/User:Tr%E1%BA%A7n_Nguy%E1%BB%85n_Minh_Huy" title="User:Trần Nguyễn Minh Huy">Trần Nguyễn Minh Huy</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>