It's not exactly disbelief on her face when she hears him make that offer. She does believe him when he says that he'd be willing to teach her, and if she's really being honest, she wouldn't mind trying it if it meant getting to know him better. But there's a certain amount of skepticism in her eyebrows when she asks a follow-up question.

"Only if you promise not to laugh when you see how little I can do. Especially in the pull-ups department."

Okay maybe it's more of a condition.

And well, when Derek admits that maybe he could benefit from learning more about tech ... she smiles. "And I can promise not to laugh either. Unless you're telling a joke."