The flag, when carried in a procession or parade or with another flag or flags, should be on the marching right or alone in the centre at the front. The flag may form a distinctive feature of the unveiling of a statue, monument, or plaque, but should never be used as the covering for the object. As a mark of respect to the flag, it should never be dipped to a person or thing, as opposed to regimental colours, organisational or institutional flags, which may be dipped as a mark of honour. During the ceremony of hoisting or lowering the flag, or when the flag is passing in a parade or in a review, all persons present should face the flag and stand at attention. Those present in uniform should render the appropriate salute. When the flag is in a moving column, persons present will stand at attention or salute as the flag passes them. A dignitary may take the salute without a head dress. The flag salutation should be followed by the playing of the national anthem.