Def:nonverbal, usually unconscious, communicationthrough the use of postures, gestures, facialexpressions, and the like.by Dictionary.com
Body Language explain here too
find more about this from wiki here
body language most essential pert in home income when you see a guru type marketer presenting a webinar you should know what they try to hide from us they never share the truth how they got success in their home business they give us second income hopes but only they need is our money so unspoken language is most important part of our life considering even online or offline so when a person hints points from unspoken language that mainly part of body language.this language includes eye movements,body posture,touch,use of space etc..and you not confused with sign language it is totally different from body language professionals say it is kind of nonverbal sign sign language that means process of communication sending and receiving wordless cues between two or few people.there are 8 signs that you have to read on as wiki how saysPay attention to how physically someone close to you,watch there head position,look into there eyes,see if they mirroring you,check there hands,pay attention to signs and conversation to begin with,be aware of nervousness,watch there feet. people are throwing off bunch of body signs as they go thats part of human nature that why as close friend or relation ar stranger we need to learn to how!
culture to culture this have universal ways to communicate so it have vast information about how people could do this to keep hopes in income