Lita: On the plus side, Shelby is usually aware of when she's getting on someone's nerves and good about skedaddling when she is... so Lita could still come by. I like to put my characters in situations that aren't wholly comfortable either, so there is that. :)
Max: Aw, Max! Shelby wants him as a regular so he can balance out all the serious people she might have to deal with on the daily! If he makes her shop a part of his regular routine she might start shooing him out a little more quickly so he's not late for the day job too. I think she'd be a little taken aback by the awkwardness because she isn't very used to that, but she'd get over it.
Jane: I love the idea of these opposites being friendly. She would probably send doughnuts back to the department with Jane, because she thinks the stereotype is funny, and her Gram's shop in Boston had it's fair share of cop regulars. I think she'd probably pick Jane's brain about how safe Austin is too, since she had tried to get to know the city before she showed up, but nobody really said a lot about the rogue Hellhounds.
Luc: Shelby's a little frowny about anyone having to pick a side in an argument, but she would definitely be super friendly (and probably very twenty-something-ish about the flirting) to Luc if he came in. She would be a little intrigued about his job, if he said anything. In her mind he's only like a step down from being secret service.