[ Cisco almost, almost immediately quips back with "oh, various sexual favors," but he manages to restrain himself. That is a joke for friends, or at the very least acquaintances, not random strangers who he might make intensely uncomfortable (or worse, who might think he's being sincere). That was a close call, though. ]

I... can show you the tech I'm working on? You know, quid pro quo, Clarice, and all that? Or, uh, I can walk your dog for a week, if you've got a dog? Bake you some slightly substandard cookies? Um, buy you another drink?

[ He doesn't think Tony is actually looking for payment - not with the way he's smirking - which is why he doesn't just offer to actually give him money. ]