You could be worse
You know proper cell phone etiquette, but you don't always practice it. With just a little more effort, you can avoid the evil stares of strangers and save yourself the embarrassment of revealing private details on a quiet bus. Remember to use the environmental settings on your phone, excuse yourself from a conversation if it is necessary to make or take a phone call, and brush up on your cell phone etiquette here. And really, talking on your cell phone in the bathroom? That's just plain gross.