It's the small audiences that get you.
I do some public speaking and think it’s also harder when someone close to you is in the audience. When it’s acquaintences, it makes it easier to look at someone you know, but if it’s someone close, I think a little more about every word I say.
Just saw the replay—Biden didn’t know why they were doing the oath again and Obama “reminded” him that it was for the Senior Staff (or something like that) and Biden said, “My memory isn’t as good as it used to be” or something equally awkward that could come back to haunt him.