Welcome to open carry do you have a ccw permit? If you don't then it must be Utah unloaded. If you have a permit the rules change.
Business can ask you to leave signs carry no legal authority for business.
You must comply or face trespassing charges.
Where will you be carrying? I would research local laws and carry a recorder or download the recording app on your smart phone.
Posting from my smartphone so I can give you more information based on your responses.
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