Check you out being so busy! For the teenagers, can you ask them about their favorite band/musician? You can also tell them knock-knock jokes. Knock know, whose there? I bet/ I bet who. I bet I can make you smile. They will chuckle despite themselves. even if they are smirks...
What are the age of your models? If they are profesional older models, I suspect that you play to their vanity...not to insinuate that mdels are vain...but ya know -
Oh, the other thing I do is make them make a funny face...no photographer ever asks them to do that.
