Be prepared to be stopped and automatically presumed by LE to be breaking a law.
Depending on the type of LE and their personal view of Open Carry you will get different responses, but for the most part they will be negative, and be swayed by your responses verbally and non verbally to their "******* test"
LE always adminster the AH test to people to determine if you are a cowering sheep type or a belligerant criminal or civil rights advocate. Unfortunatley belligerant criminal and civil rights advocate are one in the same in their eyes.
So just be aware your fighting an uphill battle, first off they get a call for a man with a gun, they drive up to your location,see you strolling or sitting there with a rifle on your shoulder, and think "who is this F'ing clown". they are already approaching you thinking you are up to no good, the weapon is loaded, its illegal, your illegal, open carry is now illegal, at the least your crazy. So the first words out of your mouth or not speaking at all will be crucial.
If they dont prone you out and do a full body molestation barraging you with attitude and questions about who you are or where you are going why are you carrying a gun what are you thinking etc..... you have an opportunity to make the encounter go somewhat smoothly.
Here is my advice, and it has worked pretty well for me with my many LE contacts.
-First off DONT carry any ID, nothing to identify you. This way when they ask you for ID you can honestly say "sorry I dont have any" and when they ask you for name and dob they want to run you for priors, you are not required to ID yourself unless you are being arrested, so politely decline to ID yourself, quote the appropriate SCOTUS case to support this, if they search you for ID they will find none and now you have cause for illegal search.
- Be cordial and friendly, say "Hi", "How you doin today" , "Officerrr???______" extend your hand offer a handshake. This is a verbal judo technique that makes the officer choose to comply with your social game of greeting or be rude and decline to be cordial. It also displays an open unarmed hand in a non threatening manner. If they choose rude and decline to shake hands, call them out on this "Why are you being so rude officer I thought your (agency) treats all citizens with respect and dignity?" This is the exact same techniques they will use on you to get you to verbally comply to their game of "im in charge, you cower in fear and do as I say". Dont play their game, beat them at it by playing the fine upstanding polite and dignified citizen, it will sound better on the video/audio recorder if it needs to be used later.
-Absolutley know all your rights cold and be ready and able to quote from memory under stress, Scotus and penal codes. Dont be rude or demeaning just be nice and firm and stand up for what you know are your rights and what they can and can not do as agents of the government.
- Try and end the encounter as quickly as possible, any attempt they make to detain you is an attempt to find something to stick to you or for you to make a mistake. The moment they finish the E check, if they choose to do one, thank them for being professional, and leave. Even if they werent acting or behaving professionally thank them anyway, it sounds better on the tape and it reminds them they are srewing up by you thanking them when they are being bullys.
-They will try very hard to get you to electivley give information to them and they will try and use this against you, they may insult you, demean you challenge your manhood, yell at you, threaten arrest all sorts of techniques to knock your ego down and make you be submissive. The best way to handle this is to not respond at all, in fact be MORE cordial and respectfull, but not submissive. They want to get under your skin and make you squirm and show your upset. Dont let them, this is how you win at Verbal Judo.