This tip is a short one.
Tip for the photographer behind the camera:
Be A Guide
It is the job of the photographer to help the subject look their very best. It order to do this we as photographers have to be able to guide them into a pose that is flattering but does not make the model feels self-confidence. And remember, sometimes the best way to guide them is to show them. Don’t be afraid to pose the way you want them in so they know exactly what you’re looking for.
Tip for the model in front of the camera:
Try to remember to keep good posture. Good posture is viewed as confident.
On a little side note if the photographer gets in the pose to show you what they want it’s okay to laugh, especially if the photographer is a guy posing like a girl.