Some people report that they can get in a state of flow while pair programming. I've experienced this on occasion but I'm unclear on what the exact ingredients

Some people report that they can get in a state of flow while pair programming. I've experienced this on occasion but I'm unclear on what the exact ingredients are to produce flow while pairing. A big bonus with pairing, however, is automatic and real time code review, architecture review and perhaps even product review. Two people together are a lot less likely to run into the wrong direction _together_ than a single coder.