Marin nods, and goes over to the soldering iron.
She (obviously) grabs it by the handle - you always need to treat soldering irons as if they're hot, regardless of whether you know if they are or not - and brings it over to Helga.

"Maybe?" she says, uncertain how exactly she'd go about it. "You have something in mind on how to improve it?"
Marin obviously doesn't have it with her - it's left at work right now.