I was feeling down. So I combed various English Google sites to see what words and phrases pop up after the word 'Happy' in Google Suggest. Many alternates are available.
eg. In Google search, type in "Happy" then space and "B" and see what Google suggests!
Hint: Some of these are tough. Remember it's Google, so think of things people search for. There are a few phrases as well (more than one word after 'Happy')