The top two things the cops worry about when pulling someone over are:
Getting hit by oncoming traffic.
Getting shot by the one being pulled over.
Good points, although maybe a bit off topic. I read a book about 15 years ago that was written by a retired NYSP Sgt. It was a "how to" on the best way to avoid a ticket if stopped. I gave it to a friend of mine that has been stopped several times, but I don't think it's done him much good.
The take home points were related to what you said. Don't make the officer nervous and do things to make his life easier. The last time I got stopped, which was in NH in 2000, I drove away with a "Please slow down and have a nice weekend sir", from the nice trooper.
The keys are,
1) Don't do anything stupid. If the officer comes up behind you and turns on the lights, DON'T slam on the brakes. He's got you anyway, so slowing down now isn't going to help. Especially if he rear ends you.
2) Acknowledge that you see him and then find a safe place to pull over. If he asks you why you didn't stop immediately tell him you were looking for a place that was safe for both of you.
3) Pull the car as far to the right as you can, put it in park, turn on the interior lights if it's dark, shut the engine off, pull the keys and put them on the dash, put your hands on the steering wheel and look straight ahead. When the officer approaches the vehicle and starts talking you should actually be surprised.
4) Let him do the talking and don't lie. If the officer asks you why he stopped you and really know, say so. It's not like he doesn't know why he stopped you.
5) Be polite. Even if he's young enough to be your son, call him sir. Or Trooper, is he's one. You're talking to the uniform not the person. There's a whole list of things not to say, but I'll leave it to one of the LEOs on the list to post them. Well, I'll include one thing.
6) DON'T do what a friends nephew did. Pulled over for doing about 90 on I-93, he rolled down his window and with joint in mouth looked at the Trooper and said, "What?". He now has a seven year suspension of his license. And no, I'm not making this up.
As to the original topic, I once did divulge that I was carrying with my LTC, but the officer didn't seem to care as he didn't ask for my LTC or for me to show him my license. Personally, unless he's going to ask me to get out of the car I'm going to keep my mouth shut. Now, if the officer asks "Do you have anything on you that could injure me"? I'm going to fess up. Not that it WILL injure him but the question is broad enough that not divulging it could cause problems.
Gary