More important point - while openly carrying, do not get into or allow your companions to get into an argument with an officious but ignorant citizen. Also, if you are not alone and desire to record the transaction, allow another person to do so. Keep your hands empty, motionless and in view. Establish early and often whether or you are being detained. Ask in different ways. Remember that more than one LEO has said something like "No you are not being detained but you are not free to leave."