No, but she might try positive reinforcement. Give him something he likes every time he knocks.
She puts the bad of tools on the table next to the milkshake and pokes into the grocery bag. Assuming that the actual food items are for him she still snags the lollipops. She guessing she has to go out and do the domestic needs thing later. Right now she's a woman on a mission.
She pulls one of the gum filled fruit lollipops out of the back and pops it in her mouth. "Seriously?" Does he really wanna compare notes on this? Let's dance superboy. "I've actually built a computer before." She goes back to poke at the tools, pulling out the soldering iron and silver solder. "Out of an old washer." She looks back at him, pulling the lollipop out of her mouth. "I was seven." She is totally bragging because she can. Also because Ray won't remember any of this when they wake up.