I mean most people are just pretty boring. I find that people talk about:
Work (generally not a great idea at parties, maybe a bit more acceptable if it's hosted at work, or if you do something really unusual that others find interesting, and are able to talk about it in layman's terms).
Sports (I like sports well enough but am not passionate about any team or sport. I cannot add much to a conversation about specific players, games, coaches, statistics, strategy).
Wine, whiskey, tequila, food: See Sports, above.
Their kids or their vacations or other bragging. Nobody cares.
Reminiscing about some experience that a group of them had together. Hard to join in, if you're not part of that group or that experience.
Politics, conspiracies. Just no.
Interesting people who talk to people they don't already know are rare.