Hello! I'l keep it short,so please help me if you can

I have a blogger,and i want to be able to do this


http://www.fmylife.com/

I want each post to have a Facebook like button,G+ and twitter  and the "I agree,your life sucks" or "You deserved it"(just with different text) where people can vote only once,without having to log in.

Can someone please show me how?

I think all three buttons can be available from its prospective websites and you would get short code which you would require to post on the page where you want to display those buttons. I didn't get the concept for third button.