Could a Jr have a crush with a freshman?

It is in high school. There is two guys that look at me a lot and some of their friends do too. One of them when he walks by he looks at me then when I look at him he looks away. My friends say he likes me. Then the other jokes with me but never without a big group of people. But he similes at me when we p each other in the hallway. I also catch him looking at me but I don't know. Can you help me?