what are the seven types of nonverbal communication?

1- posture and gesture
2- face and eyes
3- touch
4- clothing
5- distance
6- time
7- ???????

http://psychology.about.com/od/nonverbalcommunication/a/nonverbaltypes.htm

The seventh type of nonverbal communication often referred to is "voice." Voice includes elements such as pitch, tone, volume, and tempo. It encompasses how we use our voice to convey meaning, emotions, and attitudes beyond verbal content. For example, a raised pitch might indicate excitement, while a slow tempo might suggest boredom or disinterest. The voice is an essential component of communication and contributes significantly to the overall message being conveyed.