Well, when your happy and smiling your voice sounds a lot more up beat and exciting so they can tell the difference in your regular voice and your excited and happy voice. If your sad and you frown your voice gets lower, if your feeling tears your voice can become uneven and they can tell your not happy. If your angry at them or unhappy with the person your talking to then you may seemed rushed.
1. body language 2. facial expressions
body language
The approximate number of facial expressions dogs can make are 100
Body language, props, and facial expressions.
The study of non-verbal communication such as body language and facial expressions movements.
Facial expressions and body language are forms of nonverbal communication.
Facial expressions can be very important when in a conversation, especially while listening. When a person is talking to you, they usually decide how well the conversation is going or how well you are listening by your facial expressions. Rolling your eyes, frowning, or having and absent look discourages whomever you are speaking with.
the facial expressions and body language of teachers.
body language.
Facial expressions are when you describe the emotions of a dance with your face.x
There are some studies that suggest that our facial expressions are inherited, witness that facial expressions of the blind from birth, who also smile and frown. http://www.answers.com/topic/facial-expression
Certainly. Voice intonation, body language, gestures and facial expressions are all examples of non-verbal communication.