OC is legal for there being no law to prevent open carry per se, thus no requirements of 'how'. Concealed carry is prohibited.
Carry of a gun is prohibited by the state in school zones, establishments licensed for consumption of alcohol, government owned buildings, certain government owned properties (parks etc). Guns in vehicles (ATV, bicycle) are regulated with civil forfeiture and cannot be concealed (criminal misdemeanor).
Municipalities enjoy home rule limited only by particular legislation, that has been ineffective in regulating gun ordinances. There is state preemption of gun ordinances but it is largely ineffective.
Condition one is fine. There is no regulation on the manner of open carry.