What are the redflags for rejecting reletionship after first date?

When you go on a first date, sometimes the other person says a lot of nonsense. You may get excited and talk nonsense too. But the reactions of the other person in this situation are very important.

What are the reasons that will prevent you from giving a second chance after a bad first date? What are the redflags?

What are the redflags for rejecting reletionship after first date?
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