His face was expressionless. His eyes nearly drooped, his mouth straightened, his face strained to abort any light in his face that could ignite a smile or any kindness whatsoever
Testing the waters makes sense. It makes perfect sense to see what you're getting into before you immerse yourself in it, perhaps risking your life. Most of the time, though, you're risking your comfort, not your life. You're holding your timidity up against something constant, somehting that will not change itself for you. You will change for it, if you want to be there. So testing the waters is bullshit. You are testing yourself.
She chose the least offensive sticker pinned to the wall. Why else wold she have a bumper sticker that read "I love my cat." The other ones were gaudy. So just to represent, she picked a simple one.