He performed at least as well as Trump during the Presidential debates so he is capable of extemporaneous speaking. As to why he keeps a low profile? He is not stupid and even an experienced public speaker like Trump made the occasional gaff and that was the only thing remembered afterwards. Whatever Biden says, people like you will take it out of context and turn it into an attack, legitimate or not.If he wasn't a puppet why isn't he allowed to take questions and answer them for himself?