Looking on the internet deeply has found these results:

How are you doing? is the most popular phrase on the web.

What is up? 1252,000 results on the web	How are you doing? 118,500,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
hello · sup · hey · hi · yo · how are you · wassup · how's it going · what's good · greetings · what up · greeting · what is up · what's going on · what's happening ... mail address? What is your favorite drink? What is your favourite drink? What Is Your Full Call Sign? e : going on : taking place what is up>. 3. a : risen from a lower position . b : being at the same level or point What is up? ... What Is Up; What is up? What is your e When I called my friend he didn't seem happy so I asked him "What is up?". He said he was having trouble with his girl. by Scottmana September 15, 2007.	What was the experience like? How are you doing? how are you doing? How are you doing? (Your message is described here.) (Video) Man: How are you doing? How are you doing? they're also the builders. Mr. Burkett, how are you doing? I don't know...

What is up?

1252,000 results on the web

How are you doing?

118,500,000 results on the web

More popular!

hello · sup · hey · hi · yo · how are you · wassup · how's it going · what's good · greetings · what up · greeting · what is up · what's going on · what's happening ...
mail address? What is your favorite drink? What is your favourite drink? What Is Your Full Call Sign?
e : going on : taking place what is up>. 3. a : risen from a lower position . b : being at the same level or point
What is up? ... What Is Up; What is up? What is your e
When I called my friend he didn't seem happy so I asked him "What is up?". He said he was having trouble with his girl. by Scottmana September 15, 2007.