Even when an individual sleeps, communication is going on. Leave me alone. Non-verbal cues can include facial expressions, crossed arms, or other personal movements or actions. In a non-verbal sense, the individual staked claim to his or her territory. involves rules, noise and feedback. The communication process takes place in some kind of context, whether it be in person or via phone or email.
Noise refers to disturbances which take place in the communication process.
The noise can take place in the source, the channel or the receiver of the message. Cultural differences can cause noise because of the difficulty a receiver might have in understanding words of the sender. This is called symantec or psychological noise. It can happen in the source or the receiver. There is also psychological noise when one of the parties to the communication process is not paying attention.