What are you DOING?
Making a boat.
The Big Bang Theory Season 11, Episode 13
What exactly is he DOING there?
The Big Bang Theory Season 2, Episode 19
What are you DOING?
No one can see us like this.
Game of Thrones Season 7, Episode 3
What kind of research are you DOING?
The Big Bang Theory Season 6, Episode 3
I see what you're DOING.
The Big Bang Theory Season 2, Episode 15