What are some sings that I should be looking for if he likes me?

A couple of weeks ago, I started learning jiu-jitsu (No-Gi) with a guy from the gym who has been practicing BJJ for quite some time. My boxing trainer connected us because I shared that I would like to learn grappling and wrestling as well. So, this guy is now basically my personal trainer, even though he is not a personal trainer per se.

We are about the same age, and I really like his behavior and the respect that he has shown me in the learning process so far because I was, at the beginning, quite closed off due to the novelty of physical contact that BJJ brings. With time, I feel like I've started developing a little crush on him.

I want to be respectful and not cross any lines, but I would still like to know what are some signs that I should look for that could show that he is interested in me as well. Our conversations are quite nice, we crack jokes from time to time, and we talk a little bit (if time allows us to do so) before and after training sessions.

Hope you guys could help! Thank you!

What are some sings that I should be looking for if he likes me?
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