When I listen to Broadway cast recordings at home or in my car, I tend to sing along at the top of my lungs. Especially the ballads. I really belt those out. It ain't pretty, but it's fun. When there's noone around to hear, it's easy to pretend I sing as well as Linda Eder or Sarah Brightman.

On the other hand, when I forget myself and begin to sing along at work, my coworkers are usually pretty quick to remind me that I don't.