Share a tmux session for pair programming with ssh

Is there any way, plugin or otherwise, that you can share commands pressed?

For example, I get a new dev to log in and connect to a digitalocean droplet hosting a tmux session. I want to help them with vim.

Text on screen is clearly not enough with vim, they need to see commands I'm pressing in the other non-insert modes.

Thanks!

This is awesome, one of the best features of tmux. I regularly use the tmate.io service to share tmux sessions when I'm working remotely.