Usually after a Biden speech there's a fair amount of silence. When it goes OK, meaning he didn't wet himself, there's generally arguing and nitpicking a minor detail to distract from the overall "meh"-niss of the address and other glaring errors.
Regardless of how bad, and it unarguably will be bad, the overall sentiment will be "yeah, but trump sucks!"
Try for yourself at home. We could turn it into a drinking game, a shot every time he blows it, but we'd all be loaded after ten minutes.