Ask someone, "What have you been doing for fun lately?" Then ask a follow up question about their answer. See what happens.
Listen carefully, then restate or summarize what someone else tells you. Try this at least twice today.
Ask a non-family member 3 open-ended (not yes/no) questions. Start with "What, Why, or How." See what you get.
Learn someone's name today. Say it at least 3 times in your conversation so you remember it.