title: How to build a android apps like This
body: <p>Now i am facing a problem with my apps. 
  I want to make a animated hand on my app that help user in this way how to use it.
  I give blew a picture sample. Please help. <a href="http://i.stack.imgur.com/IgAMU.png" rel="nofollow">http://i.stack.imgur.com/IgAMU.png</a></p>