I have a few options for 你 if 你 DON'T have a gif icon:
• Go on the 潮流粉丝俱乐部 搜索 Bar and look up "animations" a spot will come up with 图标 in GIF form. There will be a section with icons. But if 你 can't find what 你 like there,
• Go on 谷歌 图片 and 搜索 (WHAT 你 WANT) gif 图标 and the 图标 你 may like will come up.
Then 你 save that 图标 (which ever 你 chose) and 上传 it to your 照片 gallery and put it as your icon.