He doesn't need to. Rip is intimately familiar with her weapons of choice. It may look like a revolver and it may be weighted like on. However, it lacks the tell tale scent she'd associate with an actual six-shot revolver.

Which means, either it's new and unloaded. Or it's a prop gun not meant to actually shoot. Rip doesn't even bother questioning as she takes the gun and points it at the target without having to look.

"Wheel of Fortune? Iz zhat some sort of an American zhing?" If it is, she does not understand the reference. But, now that he's explained his reasoning about her name, she hates to admit he does have a point. Rippy sounds childish and Winkle..

...Rip could do without that being shouted at her to gain her attention. "Hm.. Vanna." She keep the gun aimed at the target for a few more moments before quickly stepping closer to him. Seconds later, he might just feel the barrel of the gun under his chin while she smiles. For someone who looks so innocent, the fang filled grin that splits her features wide open add a very terrifying close up of teeth meant to tear flesh apart.

"I zhink I can live vith Vanna." Even if she does not get the reference. "Und hand me a real gun next time. Zhis prop von't shoot a fly. But, I could definitely uze it to impale zomeone through zhe eye."

A moment later, she's back to looking cute and 'innocent' with the gun held out to him, handle first. Can this girl deliver on her claims, yes. She can.

If she chooses too.