<p>I just had an on-campus interview at Yale with a rising senior, and I would like to send him a thank you e-mail and ask him a couple questions I didn't have time to ask during the interview. I just ran into a dilemma: how do I address him? I feel like it's a little weird to call someone only slightly my elder "Mr.", but it seems too informal to call him by his first name. So what do you think?</p>
<p>Call him by his first name. He's basically a peer. After all, if you end up at Yale and run into him, you won't call him "Mr. " unless you choose to look foolish.</p>
<p>First name would be fine, I'm sure. Seeing as both parties will be Seniors next year, if klaz gets admitted, he wouldn't run into the interviewer. That's one reason why Y uses rising seniors for interviewers during the summer.</p>
<p>Definitely first name. My older interviewer from MIT(~30ish) even allowed me to call him by first name because we had a good conversation.</p>
<p>If this is serious...first name.</p>