12. Interpersonal communication may be in non-verbal form. Which of the following choices is NOT a good example of non-verbal communication? a. While conversing, I make eye contact. b. When I am listening to another person, I often cross my arms over my chest. c. When I first meet someone, I introduce myself with a smile and offer a handshake. d. When I am in a group, I tend to smile and use humor at appropriate times