Standing

Do you want to know if someone feels the same as you? Just observe his/her legs while you are talking. Do the toes point towards you? Is he/she comfortable when you are close to each other?  

When you are talking to someone and you notice that her feet suddenly turn towards the door or the way of exit, it means that the person is not pleased with you.

Legs crossing

Feeling comfortable, while uncrossing: discomfort

Legs are apart

Jumping

Feeling happiness. It happens mostly when people receive good news; they jump with joy.