maybe one day you can just go sit infront of him during lunch time and talk to him while eating. and you can ask him...what made him look at you.? something like that... then if he's like not answering your question sincerely or something then u see how lo. (his response will tell you about it lo..)

But for you to just go and sit infront of him would shock him... hahhaha... but just treat it as a casual chat lo.. like getting to know each other.. instead of like want to question him like police like that...hahah...talk about anything also can la... and if he's too shocked to talk.. then juz diam diam eat lo... and then after that.. u go on with whatever your life is...hahhaa.. how's that.? If i offended anyone here, i apologize.