How to properly react?

[ammi]

so this is about a dude in my uni classes... In first class he smiled at me.. then in later classes he starting coming to me and asking if i need help..when i was asking the teacher a question he came and said he has the notes..but then the teacher said she is asking a question she does not need the notes. in the third class, he raised his eyebrows when he saw me.. in fourth class he did nothing except when i was done the class, he was sitting in one of those cubicles for studying...he said bye and that is when I noticed he was sitting there... usually no one sits there at 7 pm... plus he was not even studying.. he was just sitting there facing the hallway so he scared me when he did that..and I ignored him and walked by as if he was not there. I was surprised by this action....didn't expect it at all.he also kinda got angry(from his facial expressions) when i didn't reply.. I know this was rude but he scared me plus i was in a bad mood already this day because my brother was sick. do you think i should talk to him ...or just ignore it since i don't know him.

[gwynethpaltrow8]

Just get to know him, he probaly thibks your pretty, maybe he is a lil sensitive.