How do I flirt with him hard?

Helloeriss01
There’s an guy. We sit in a giant circle in class and every time he raises his hand and starts speaking he’ll glance at the professor and then make eye contact with me while talking. He’s outspoken and always makes eye contact with me while talking which obviously means he doesn’t find me hard to look at lol. I was kinda playing around with another guy in the class because we were working in partners and the teacher asked us what we were doing and the guy just said we were just figuring something out and I saw the guy I’m interested in look over at us and stare at me.
I’ve been told pretty lol which I know doesn’t automatically make him interested.
I decided to speak out on some injustice topics and we kind of had a discussion going on and he agreed with me and added on to what I was saying with some issues that happened to his friend. He kept glancing at the professor and back at me again but was beet red while he was talking but still spoke to me with no problem. Before class He’s sat next to this transgender guy ( who’s married ) and asked him how he was a few times and made small talk but seemed rlly confident talking to him. We also had a conversation about a movie and a short story we read and he explained it to me. After class I saw him go near the professor and he said loudly to him that this was one of his favorite classes and he just wanted to say it. One day He sat near me in class and looked at me and said awkwardly how it was nice to be having a break and watching a movie. I agreed and It got quiet and I said I was gonna go call this guy I’m dating. Later he said how his girlfriend was at a college a few hours away and he’s not doing well because they’re long distance and it’s causing problems. Which he’s never mentioned a girlfriend before and I feel like he mentioned her because I mentioned the guy im dating. Why’d he say this? I only have that class 2x a week by the way and before you come for me, there’s nothing wrong with flirting.
How do I flirt with him hard?
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