What I always want to do to those bombardment people is give them a blank stare and go "Uh, no. I'm not interested. Because if I were, I'd be coming over to you, right?"
Instead, being Norwegian, I pretend I haven't seen them as long as I can, get a deer-in-the-headlights look, freeze up and squeak out a "nosorrynothankyou!" through a tight polite smile.
