The whole product page for internet products, the ui interface is the channel through which the product interacts with users. Through the visual changes of the product page, users can directly gain a new experience, and at the same time, it can be matched with various marketing activities to create a whole person effect. Commonly used methods are: screen upside down, product copy replaced with symbols, broken screen effect, misaligned borders, obsessive-compulsive disorder, etc. For example, google once reversed the direction of the homepage search page for april fool's day, and alipay also reversed the up and down direction of the screen on april fool's day. Pril fool's day reverse poster as a regular means of promotion, brand posters are applicable to all types of companies. April fools' day posters generally have the following routines: (1) lies and hearts poster debunking the heartfelt emotions and brand special email list propositions behind the lies starts from the lies, which is basically applicable to every brand. (2) tell the truth poster it seems to be talking about the shortcomings of the product, but in fact, the advantages and core selling points of the product are expressed through the processing of copywriting. (3) reverse case posters by joking about the negative consequences of not using the product, use joking copywriting to indirectly highlight the product's advantages. Posters that do not lie everyone on april fool's day is joking about the concept, and unlike mainstream brands, it can be a good entry point without deceiving people, whether it is to convey the benefits of the event or the authenticity of the product is a good choice. Routines have been said so much, but joking and user experience are like a double-edged sword. Good use can bring huge exposure, and bad use will cause collective complaints. Here are four things to keep in mind when promoting april fools’ day.