Drawing People

I am interested in drawing people as they are living their lives.  It's hard to get them in motion because they are walking, talking, shifting their positions every minute.  So I take some photos instead and try to draw from those images.  It's so interesting to me that no one really cares I'm taking their photo.  My iPhone is so less noticeable than my Canon camera with a telephoto lens.  

Looking at a photo also helps me see the relationship between people, their limbs, heads, feet, etc.  I will sketch these people in my sketchbook tomorrow!