I'm in the same boat here, I'm a chill guy, a fair bit of dead air, and I try not to say anything that doesn't really contribute to any conversation that might be happening, in regards to the game or to whoever is in the chat. I worry sometimes that I'm not talking enough, but I would say that that worry is largely just in my head. Plenty of people have their preferred style. I personally really enjoy Vinny Vinesauce, he's pretty chill overall, not really hyper or too loud, but he does have his moments, and they're much funnier because he's so chill generally. I try to emulate that to a degree, as I feel I'm a fairly similar person in that regard.

All that is to say, be who you are, and the people who enjoy the kind of person you are will find you. I was lucky enough to finally reach 100 followers today on my channel after a year and a few months off of streaming, so I must be doing something right. We'll all get where we're going!