It's fun for many of us due to the combination of music, dancing, alcohol and socialization (in varying proportions: depending on tastes, interests and circumstances, one or two of those aspects can be set to zero and it's still enjoyable).

Of course, it's also perfectly fine not to like it, and then the most reasonable course of action is not to go. Or to go a couple of times until you're sure you don't like it, and not go anymore. I know cases of people who go partying just because they want to find a partner, but don't enjoy it at all (it's relatively common in my country because partying is quite a religion and there's often a lot of social pressure at certain ages), and that's rather sad. There are other ways to socialize, it's not necessary at all to torture oneself.

That said, I have to lecture you on the questioning of "talking for the sake of talking". In the context of finding a partner, talking to other people is exactly what people need... it's not "for the sake of talking", it's for the sake of socializing, meeting new people, building connections, which is the whole point when we're talking about flirting or lack thereof.