[Okay, Wally gave the whole hide and stealth tactic a try. Really. For like two whole minutes! But nothing has happened and he's grown impatient. And he's always been the type that went out and found the action instead of letting it find him.
So while he attempts to be as quiet as possible as he moves, he's not really trying to conceal himself from his opponents. Which might make him a pretty easy target for anyone that just happened to be nearby.]