The document provides tips for using Twitter effectively at the 33rd Annual Meeting of the European Society of Human Reproduction and Embryology in Geneva from July 2-5, 2017. It identifies 14 categories of tweets that would add value, such as those that accurately inform, provide follow-up options, drive debate, or inspire. Examples of valuable tweets include retweeting others, asking questions, offering opinions, posting highlights or takeaways, and sharing photos or videos. Hashtags like #ESHRE2017 should be used to engage the relevant scientific community.