Is being witty something that is learned or is it something that just comes with the person? Is there any way to become more witty?

My mother is super witty, and she always has something to say. I’m always jealous of her because she’s always making people laugh and she knows what to say to whomever and stuff.

Now don’t get me wrong – I have great social skills, but sometimes I just wish that I could be funnier and more witty.