Often they are used to promote a single idea, event, a point or to generate interest. A poster can be a great way to interest people in a presentation about the results of a study. Posters should be designed with minimal information so that people who quickly glance at the poster will quickly absorb a message. Place them in locations your potential audience frequents like stores, banks or community centers. They entice people to find out more.
Different colors affect the eye differently.
Bright colors can help attract a user's eye contributing to higher response rates. Research has shown that blue, green and yellow work best, while white, red and black are less effective. Often learners are visual as well as auditory. Displaying key presentation points often enhances the ability to absorb what is said. In advance, be sure your equipment works, the lighting is appropriate, and there is time to include visuals as part of your presentation.