Yesterday

I was just taking my bath when suddenly I remembered about something that happened yesterday. I was going to English class at 2pm just after having my lunch at EON cafeteria. when going up on the lift to level 4, I saw a girl who I thought was my x-schoolmate, I asked her if she got class, but then she gave me a 'look', and her friend behind her also gave me a 'look', then I’m having a thought, is she or isn't she my x-schoolmate? I’m damn sure that she’s my x-schoolmate, but the problem is, she never answer my question, and her friend and she gave me a ‘look’, so now I’m not pretty sure if she’s my x-schoolmate. I felt a little bit embarrassed, but I just played a macho guy, hehe.