"Oh, well, I have a friend who I always like to be witty with." Alistair has been great practice for her, before she even realized she should practice this sort of thing. "But I can't say I'm any sort of expert on wit. You could practice if you want, or find other ways. I'm sure it doesn't always have to be wit. Pointing out that name calling or insults is what the cowardly turn to first might shame them."