It's always performing for me. I write and I record so I can perform. It all ties to that. I've done it since I was a little kid. That's my absolute rush, is playing for different people every night, bringing something else to the table they've never seen.
Hunter can write a melody and stuff like that, but his forte is lyrics. He can write a serviceable melody to hang his lyrics on, and sometimes he comes up with something really nice.
Both tears and sweat are salty, but they render a different result. Tears will get you sympathy; sweat will get you change.