The whole game 140 hrs I have never been able to actually talk with a guard. If I press the action button they would just say something stupid but now I get dialogue options. I can ask questions and they can tell me things. Am I the only one that couldn't talk with guards. Was it a bug I was having or was it story related? I don't know if this has anything to do with it as far as it being a bug but right before I noticed I can finally interact with the guards there were three of the same people outside of Whiterun. They all had the same names, they said the same thing at the same time but they has their own individual movements. I attacked one of them and they all attacked me then I at that point I was able to talk with guards. I traveled to different cities and now all of them had dialogue.
Any ideas?