Visual, technical, and audio codes are used in a WaterAid charity advertisement to convey its message. Through close-ups and long shots, the advertisement shows a girl exhausted from walking miles to collect water, while happy children play near a new water fountain. Slow motion emphasizes the girl's long journey, while diegetic sounds of footsteps and crickets add realism. Text then appears asking for donations, as 650 million people still lack clean water despite what the viewers have seen could be provided through donations. The advertisement uses various techniques to first show the impacts of lack of water access and then encourage donations by demonstrating water's ability to improve lives and communities.