I figured the best way to start here was to jump right in and pray everyone is nice! I am sure you are!
I see the moderator is Chris Saper, whom I must shameless plug as having my favorite reference book out in the market.
My work varies so I wasn't sure which to post so I thought I would use two ends of my spectrum. I work in soft pastel from photos or live sittings. With children I find photographing them and having them sit with a video in my studio at the end has worked very well. This first one is quite formal.
http://homepage.mac.com/macbeth7/.Pi...tain%20web.jpg