I use this feature quite frequently, and it's fairly hidden inside of our app and reserved for the more "power user" types. Just select a face and start typing a name! It's not the most robust thing in the world, but it's a great start and a terrific way to tag!

Some things we plan to fix with this tagging method are being able to type any string of characters and have it match someone. For example, typing "azhao" would match my friend "Alex Zhao".

I dumped this straight from my machine, so the music playing at the time is the soundtrack ;) For anyone interested, the band is called Midtown!

-- Michael