The funniest people you know are often the best listeners. Comedy is paying attention.

Being funny is mostly noticing. A joke lands because someone spotted the exact thing everyone half registered and nobody named: the phrase a teacher always uses, the way a friend stands when they are lying. You cannot notice that while you are waiting for your turn to talk. Which is why the funniest person in a group is often the one who has been quietest longest.

If you want to be funnier, practice watching rather than preparing lines. Listen for the detail that repeats, and say it back plainly. Most of what people call quick wit is just attention with a short delay.