Text letters should be at least 1 cm high. Long and complex tables and complicated graphs have no place in posters. Some program chairmen request that a copy of the abstract be mounted in the upper left-hand corner of the poster. Hypotheses often are appropriate or informative, but this depends on the nature of the experiment. Minimize abbreviations to one or two per poster.
Most people read the title and conclusions.
If these do not pique their interest, they go on to the next poster. Design the parts just described to be simple and effective. Use English, not jargon. Be creative, but not cute. If you submit an abstract that is accepted and then do not come to the meeting, send poster materials with a colleague or mail them to someone going to the meeting.