I looked up and everyone was laughing at me
That's mortifying. Why did you look to them?
I was curious how it feels to be on the other side.
It's okay to be curious and I am sorry you were laughed at, but I am sure they have forgotten all about it now and I suggest you don't think about it anymore. Were you embarrassed about doing something in front of them that's why they laughed?
LOL. Is that a moral question or your personal opinion.
It's just a question about what happened, as I am still confused about why they laughed at you if nothing is funny. If you got embarrassed by it, just focus on your work or studies so that it would fade away from your memory.