I fish alone quite a bit. I normally don't feel bothered by it like you seem to... I'm there to fish, and I only need myself to do just that. As for talking to myself, well yeah, I think that I do that. I think that's just our nature. I KNOW that I talk to myself when I'm on fish. Sunday I remember muttering some expletives out loud after a lost a nice one.
Anyway, with that said, just get out there and enjoy the peace and quiet and oneness with nature and all that good stuff! Take a buddy when you can.
Oh, and radio is a no-no on my boat. (I'm a firm believer that bass don't like Molly Hatchett)