As well as designing and preparing your poster, you also need to think about how you will present it. Generally, at a conference there are dedicated ‘poster sessions’, during which you will stand by your poster and talk about your work with anyone who is interested. You may find this article from the Supervision Whisperer’s blog useful. It outlines how to prepare an elevator pitch. Having an elevator pitch prepared for your poster means that when someone asks you about your poster, you have a succint summary of your work already prepared.