Maybe, but you are approaching this from the right perspective I think. You are trying to engage with people on a level and that is commendable. You just have to be very clear where the boundaries lie - very few players/managers are going to try and help you, they are always much more likely to be emotive about the game and wanting to vent frustration or influence you, especially at half time.
As has been suggested here, a good tactic is to say you're open to a conversation (ie. two way) after the game, but if you feel that becomes disrespectful or dissent, you will put a stop to it for both of your sakes. Then you just have to follow through with that.
You're clearly someone who wants to reflect and improve and that will stand you in good stead, without a doubt. Other people's motives aren't quite so pure!
