Hey dear,
Sure thing I'm around, I tend to lurk on these forums a lot! As for refs, it really depends: If by reference you mean something I look on and copy, then not really. However, when I see something inspiring or useful, lets say a cool facial feature, a nice composition or perfect anatomy shot, I tend to save the image on my harddrive for later. I think it is a wonderful thing to have such a folder of inspiration/educational shots at hand when your creative juices stop flowing.
As for videos themselves, I always do some preparation sketches beforehand so they look cleaner: For example, for the Face painting pt I workshop, I've done some messy sketches of eyes and lips (around 10 total) at first, and then decided what it is that I want to paint real-time on the video. I am not really comfortable with improvisation and prefer to define what it is that I am aiming for as soon as I can.
As for other references, I used to pose myself in front of a mirror, but since it was way too annoying to jump between my mirror and computer every 5 minutes, I use my mom to pose instead. :P