Techniques used by the British in propaganda included: nationalism, bandwagons, a lot of atrocity propaganda/demonizing the enemy,
Britain methods of propaganda were Literature(Books, leaflets, official publications, ministerial speeches, or royal messages), Media Coverage, Film, Recruitment posters(ex: Lord Kitchener Wants You. The most common form of propaganda), and Paintings.
The first priority for Britain was military recruitment. The PRC was created at the end of August 1914.
Film propaganda was used to get an audience to view propaganda, even if they don’t intentionally attend propaganda events.
In 1915 the PRC used cinemas, theaters and music halls to give recruiting speeches
Like most countries, Britain's main weapon against the Germans was by using propaganda that demonized them or made them look inhumane. They made people believe hat Germans speared babies and small children on their bayonets, and there was an account of a Canadian soldier being crucified to a tree with bayonets. Also Britain used common strategies like other countries did, like glittering generalities, lying, and lots of bandwagon recruitment posters.