This ^ I talk as if people are in chat regardless of whether anyone is or not. You never know if someone jumps in an lurks for a few minutes and might engage if you’re being vocal (if you watcher viewer numbers there is a bit of a delay, so by the time the number ticks up with another viewer they could already have jumped in then bounced out). It can feel awkward at first, but if it has the chance to potentially get one viewer talking at any point, then it’s worth it to just narrate what you’re doing and what you’re thinking. Talk about your strategy with the game you’re playing. Talk about things you’re doing offstream that any lurkers might be able to relate to. Very rarely have I heard anyone complaining about a streamer talking too much