When I think about it, I could theoretically go an entire day without having a real face-to-face interaction here at Sugar HQ. It's not that I'd choose to avoid my co-workers, but it's easy to get wrapped up in your own assignments, and if there aren't any meetings scheduled, you could get through an entire day carrying out conversations only on instant messenger. That's our preferred form of communication here, and we don't have desk phones. Still, when I crave a little face time, it's nice to walk over and chat person-to-person, but otherwise the convenience of IM is the reigning form of conversation. What about you? How do you communicate with co-workers in the office?