Which of the following is an example of using nonverbal communication to complement verbal communication?
a. clapping after a performance, yelling/cheering during a sporting event
b. holding up a hand to indicate you do not wish to be interrupted or to stop communication
c. smiling while recounting an experience you found amusing
d. crossing fingers to indicate lying

Paula maintained her normal weight during her freshman year in college. during her sophomore year, she moved into an apartment with two friends who are overweight. the three regularly enjoy high-calorie meals together, and paula has gained more than twenty pounds. she wants to lose weight, but it seems as if, whenever she plans to prepare a healthful, low-calorie meal, her roommates come home with a box of pizza or take-out burgers and fries. what type of influence are her friends having on her behavior? social undermining moral support emotional encouragement informal persuasion social undermining