<P> This gesture can be classified into two types based on the speed of delivery: </P> <Ol> <Li> Fast: If the listener is shaking his or her head in quick succession, it implies that he or she disagrees with the speaker and wants to take the speaker's role . </Li> <Li> Slow: A slow head shake implies that the listener does not agree with the speaker's message but does not want to interrupt the speaker . </Li> </Ol> <Li> Fast: If the listener is shaking his or her head in quick succession, it implies that he or she disagrees with the speaker and wants to take the speaker's role . </Li> <Li> Slow: A slow head shake implies that the listener does not agree with the speaker's message but does not want to interrupt the speaker . </Li>

Shaking your head from left to right is an example of which of the following movements