Question

match each behavior with a type of peer influence. emulation social exclusion positive reinforcement walking away from someone giving a thumbs - up when someone does something good doing what a best friend does

Explanation:

Emulation is imitating others, so doing what a best - friend does is emulation. Social exclusion is separating oneself from someone, so walking away from someone is social exclusion. Positive reinforcement is providing a positive response to encourage behavior, so giving a thumbs - up when someone does something good is positive reinforcement.

Answer:

Walking away from someone - Social exclusion
Giving a thumbs - up when someone does something good - Positive reinforcement
Doing what a best friend does - Emulation