Help

I’m a 21-year-old master’s student, and I have a crush on a professor at my university. He’s 29, and he’ll never be my professor, but I really like him. I followed him on Instagram, and he followed back, but he follows all students at our uni, so I don’t know if it means anything. I feel like we have similar interests, and I’ve caught him staring at me twice, but I don’t see him often. I really want to get his attention but don’t know how. What do you think? How can I make him notice me more?