While there are certainly best practices to be followed on Twitter, what will ultimately be trending on Twitter is almost anyone's guess. From meerkats and goats to a dress and a news item (take your pick), Twitter users can make a topic trending quickly. After all, thousands of Tweets are sent every second on Twitter.
Twitter's "Trends" feature has long been a place where users can take a quick glance to see which breaking news, entertainment or social movements items are most popular. The Trends, however, are almost always open for interpretation, because they are not self-explanatory. For instance what is #NYFW? With Twitter's new updates to the trends experience on mobile devices, users will get more context regarding each trend, like a description making it clear #NYFW is New York Fashion Week.
The new trends experience may also include how many Tweets have been sent and whether a topic is trending up or down (like in the example below). What's more, Twitter is moving trends to the search page and retiring #discover and activity for all iOS and Android users.