以下两种方法可以试试：　

Asking other person questions询问对方：
"Really?"
"What do you think?"
"And you?"
"What’s your opinion?"
"What’s your view of this subject?"
"How do you see this situation?"
"Did you?" (It can be used to encourage someone to tell his or her story.)
Example, "I saw her last Friday night." "Did you?" "Yes, she was with her boy friend, and she..."

Making comments on subject 给予评论：
"I don’t believe this."
"That’ impossible."
"What a shame."
"Wow!"
"No."
"Yes, I agree."
"Yes, I am with you."
"That’s incredible."
"That’s amazing."
"That’s unbelievable"
"How awful it is."
"How terrible!"

Remember:
给予评论和询问对方这两种方法能让他人觉得你对所说的话题和人感兴趣。