Comment by teirce

The point of pair programming isn't really to be talking to someone while they are coding a known solution. It's to work through and discover a solution together to an unknown. In this sense, you're kind of both in the same headspace together, and can have a conversation without necessarily breaking focus. And I would venture that almost any question that comes up in pair programming would either come up later in code review, or could be hand-waved with "yeah, I plan to fix that with X" and move on.

The important part of pair programming isn't really the programming per se, it's the discussion.

It also requires some amount of conversational art. As for being self conscious about things, you would have poor coworkers who make you think that or some unfounded worry. A good pair programmer can have a discussion without making you feel like an idiot - much the same as a good code review.