Has anyond here ever do quick double take at someone you just met?

About a year ago, this happened to me. We had a newspeaker at an annual event that takes place in my community. I was sitting almost towards the front row. We never saw each other before. But as he started to speak, we both looked at each other quick, then look away. It was weird. Almost like the scene on P & P, when Mr. Darcey first saw Liz. The reason I am even bringing it up now, is because for the next two times I saw him, he walk across from where he was and came right in my space to talk to someone else. He just stopped talking to whomever was across the room. Anyway, he ran across my mind recently, because he did something horrible that affect my family, only he didnt know I was part of the family. He was trying to be spitful to my dad because of a rumor. Now that my dad told him I am his daughter, he’s been trying to fix the situation. But I feel awkward knowing our first encounter, and finding out he’s a liar and just not a very nice person.