Use this application to Predict Behavior of your Best Friends, Your Sister, Brother or Parents.
Predict Friends Behavior is based on scientific studies of human personalities.
Just observe some part of the behavior of the person and you will know the complete personality of your friend. And based on this you can predict how your friend behave in particular situation and How his/her brains works on subconscious level.
Good Luck and Astonish your friends by predicting their behavior.