Quote Originally Posted by Mastermind
I have a friend that I think is ENFp. He's MBTI ENFP, so I'm not completely sure. How can you tell? And he's a teenager, just to let you know.
Make a slightly patronizing joke about him/her. If you both end up laughing then not an ENFp. If he/she ends up throwing stuff at you or strangling you or otherwise seems completely pissed off then very probably ENFp.