I'm right now in public walking laughing and having a full blown conversation with myself but no one suspects a thing because I got earbuds in.
Why are you talking to yourself?
Because no one is going to think I'm a weirdo if I'm talking to myself with earbuds
That's pretty funny. Others wouldn't think you're nuts because usually when someone's talking and there's no one there, they assume another person is on the line.
So what if no one else is on the line?
It depends on how much time you spend talking to no one but yourself. Generally, the greater your web of social connections, the better.