Social Media How to go viral? No set formula, but some key ingredients Holiday-themed videos offer up some big lessons in how to grab attention with your own content. Emotion and relevance are vital—and fun pajamas wouldn’t hurt. By Liz GlazierDec. 19, 2013 SHARE Ragan Insider Premium Content To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.