Can I really have a crush on someone that I don't know??

Ok so there is this dude at my school and sometimes me and my friends get seated by him and every time we do we always laugh when we look at him( not being mean we just cant look at ppl without laughing) and one time we we acting like the TV in the cafeteria was the show Tele Mundo , we were like " omg look at her house its so pretty", yk? So eventually we started laughing and one of my friends says " Bro people are gonna think we drunk." .........AND YK WHAT HE SAYS!! HE SAYS "Bro I think the girls in front of us are drunk." (btw we were joking Abt being drunk we are under the age of 21) And when I tell you my face turns RED I MEAN RED  ! His nickname is Tele Mundo guy ....... ya lol  😅

tyyyyy for reading :D