I am 25 and he is 21. We met through a mutual friend who asked us to bring his friend to sit with us. We spent 2 hours in the cafe and he asked several things about me (what I study, what I do in my free time, etc.). I noticed that he was copying my movements as well. I put my jacket on, he puts it on with me, I put my hand on my face, he did it too. When I had to leave I said hello and nice to meet him and he didn't say anything back. Later his friend caught my cousin and told him if your cousin is single and if she is for serious relationship or one night stand. My cousin told him I will ask her to tell you if she is single and he says why are you asking me these things and his friend replies that his friend is interested in me. My cousin asked me and at night he sends him a message so that he can send them to his friend that I am single and I prefer serious relationship as long as I get to know the other person well. Since then 3 days have passed and he still hasn't sent to tell us if his friend wants us to meet. I don't know what to do since I don't know the other person well and I don't see them every day. I don't even want to message him on social media since I'm not supposed to know he likes me (my cousin told me not to pin him).