On youtube there seems to be hundreds of videos of people open carrying their firearms. The recordings of their interactions with various law enforcement agencies are unimaginable.
Law enforcement personnel appear to know less about federal and state law than those they're questioning. It's obvious to me that some of the officials depicted don't like civilians carrying guns.
Don't see any OC here although it's legal. Most of the people I know have concealed carry.
The police can order you to stop if they reasonably suspect that you have committed or are about to commit a crime.
The police can also stop you if they have reasonable grounds to believe that you have committed a violation. Police may detain you until they establish your identity.
There is no obligation in our state to carry photo ID or give identity information to law enforcement when stopped and requested. Of course that doesn't mean that they won't detain you until ID is established.