You are going to learn about body idioms thanks to different funny videos. In a week or two, you'll be able to create your own video through a role-playing activity.
Take a look at these links : http://www.bbc.co.uk/worldservice/learningenglish/language/theteacher/2009/03/090306_teacher_body_foot.shtml
http://www.bbc.co.uk/worldservice/learningenglish/language/theteacher/2009/03/090306_teacher_body_leg.shtml
I'll tell you some more things on monday !!
Enjoy your weekend,
Beatriz