The document summarizes a Twitter campaign called #NoDepressionToday that took place in Egypt on December 30, 2010. The campaign aimed to lift people's moods and spread more positive messages on Twitter. Over the course of the day, the hashtag gained popularity as more users and brands engaged with it by tweeting and retweeting messages. By the end of the day, the hashtag had generated over 540 tweets and helped improve the day for many people, despite some initial resistance. The document concludes with lessons learned, including not degrading other causes and the importance for brands to listen to their customers.