So I've got a shoot Wednesday with a friend of mine that want's some pictures. I've shot with her before, we're great friends and comfortable with each other but she's a bit ADD and kinda drifts off if I take more than a 10 second break in the shooting. I'll have her posed all nice, snap a pic, and realize that I need to drop down my light or move it or something and then in the short time it takes me to do that she's completely off in her own world or texting on her phone. Any tips on how to keep a model "on task" but still relaxed? I'm thinking of asking one of her friends to come along to do hair and makeup and that sort of shit thinking that it might be nice for her to have someone to chat with between frames. Any advice?