So often we enter an interview with the idea of seeing if the person is a fit for us. But as soon as we've established that, we should remember that most of the time, the candidates have options. Everyone wants to feel needed and welcome. Letting the feeling show isn't a bad thing.
There's a saying that individuals recruit people like them, and teams recruit people that fill the gaps - diverse candidates. For that to be true, you need to have first learned to appreciate work in team beyond your own immediate contribution.
All this recruiting stuff made me think back to one recruiting experience I had. I went through many rounds of checking. I had a manager's interview. Then a full day of psychological tests. Then a team interview. And finally, even the company CEO wanted to interview me. I required yet another step - I spent a day training testing for my potential future colleagues, in a mob. Every single step was about whether I was appropriate. If I would pass their criteria. They failed mine. They did not make me feel welcome. And the testing we did together showed how much use I would have been (nice bugs on their application, and lots of discipline in exploring) but also what my work would be: teaching and coaching, helping people catch up.
Your candidate chooses you just as much as you choose the candidate. Never forget.