Body-to-body communication receiving the communication. Because this way of communicating is so varied and has so many ways of being expressed, some meanings can become lost or misunderstood. It can become difficult to focus on the message being conveyed if more than one gesture is being expressed at the same time and some signals can be missed if one is focusing on another at the same time, causing confusion in the message. This type of communication also makes it difficult to change subjects or to go into detail about a subject without the use of verbal indication. Body-to-body communication is only helpful
Computer processing of body language have to take into perspective that such computer devices that can read body language have to give people a warning of that kind of a capability. So when building and putting into effect this type of computer, so to say as a means of security, there has to be concern over whether or not to take into consideration if this kind of computer technology would be accepted by the general public. That includes people who are possibly going to be observed and monitored by a kind of computer that analyzes their body movements and gestures when they are doing something