They don't generally charge in like a coyote, after all, they are cats...quiet and stealthy. But nothing is 100% always/every time, specially when it comes to critters and their behavior.
What are the chances of calling this bobcat in? Never predator hunted before really...called a couple coyotes and that's it....but I'm thinking about trying it out...would it be worth the $40 for the small game lisence and try?
i think it would be worth it, i know i am gettn one, there are alot more bobies out there than a guy thinks, they are mostly a nocturnal critter, but from what i hear if your within earshot a cat will come in fairly quickly, but they also lose interest easy so you gotta do alot of loooooong sequences, which is where i think i went wrong last year or the good lord was lookn out for me for not havin a sg licence 
They may sneak in and sit and watch from cover for a long time, sometimes coming and going without the caller knowing it. Since they sight hunters, good camo (daytime) and concealment of movements on your part are important.
An ecaller's speaker located away from where you are step-up and maybe some type of visual attractant like a bird wing, feather, anything that will draw their eyes towards it and the source of the sound and away from you helps.
The visual will also help with coyotes as well.
Pay close attention to the surrounding area, cover edges, etc...may only see a head or part of a face through cover.