This site should hopfully help you show your emotions.
There is a wide range of them so you should find one that suits you. The libary of stills and animations will start to expand as this site has a regular update so hopfully there will be a emotion for every one.
to get a animation or still, simply click on the link to them that you will find at the side of this page. Then when you find a emotion that suits you simply copy and paste. NOTICE: If your emotion is a animation you have to save target as simply by right clicking it.
HAPPY SEARCHING :)