While I agree that pair programming doesn't fit everyone and all situations. Especially as a developer gets more experience, or for things that could be considered "scut work". What you're describing here really doesn't sound like effective pair programming.
One person shouldn't be just "watching" the other program. Especially for extended periods of time. There should be some regular interactivity or collaboration. I have found things like the "driver / navigator pattern" helpful.
Why does this picture of Ross look like some weird Mandela Catalogue pic...