Guys I need help,i was singing and dancing Hare Hare Yukai at the beach with my boyfriend and i was getting judged, how do I undo that judgement? xDD

They are just a bunch of filthy casuals. They'll never understand anime like we do. And if they think, "They are not normal people", then let me answer with a question, "In a day where people are willingly voting for Trump, what IS normal? Subjective, that's what it is". Ignore those people, because you are your own person

ctrl+z is undo.

You can't undo judgement,just ignore them,they don't anything about you so it's no use thinking about it.
It's okay if only the people who know you understand you.