online, ignore. laugh a bit inside.
Live. Mostly ignore and at times i fuel more if get a feeling more data can be gained or emotions are peak towards a meltdown by the target.
At times live, the insult is a backwards nock at play or strat, and will explain levels. Rarely but sometimes.
Had a friend that would clown any and all table talk; I miss them days, I sit silence and gain all info.