I've done remote pairing with juniors. I did it with with Skype. These days I'd probably use Google hangouts. We were both using the old SubEthaEdit app that a

I've done remote pairing with juniors. I did it with with Skype. These days I'd probably use Google hangouts. We were both using the old SubEthaEdit app that allowed two folk to simultaneously edit the same code. It's not something I've looked at recently so am not sure what the current equivalent of something like that would be. Worked pretty well, but wasn't as effective as my experiences of pairing with juniors in meatspace (the loss of body language added a significant communication barrier).