I notice that this guy in my class makes frequent eye contact with me. Two weeks ago I was in class and he was looking at me and he flexed his muscle at me. The next day after that when I was walking to class I passed by him and I noticed him looking at me and then he turned his head and then he looked back at me again. After that I was walking to my class when he and his friend was walking in front of me. I overheard him say to his friend she is so sexy and his friend responded and said who and then he turned and looked at me. They turned around and continued walking and when we reached the door to our classroom he reached for the door before I could and held it open for me. Today I was walking to my class and he saw me walking towards the door and then he ran to the door and held it open for me. As I was walking into class he nodded his head at me. What does it mean If he makes frequent eye contact with me? What does it mean If he keeps opening the door for me?