Non-verbal communication conveys most of our messages. Only 7% of communication is based on words, 38% on paralinguistics like tone of voice, and 55% on facial expressions. Body language, use of space, touch, voice, and environment all communicate without words. Sexual harassment involves uninvited verbal or physical behavior of a sexual nature. Body language includes gestures, posture, eye contact and positioning. Personal space is generally a 36 inch radius around someone. Touch and handshakes are examples of tactile communication.