Twitter is a very active participant in the World Cup celebration. Just like in 2010, Twitter is bringing back hashflags, a fun way to tweet the flag of the country you’re supporting when you use the hashtag symbol, followed by the country abbreviation.
For example, mine would be #USA, which would then translate to displaying an American flag in my tweet. The full list of possible hashflags you can tweet are located here.
Hashflags aren’t the only way to celebrate on Twitter. There is even a page where you can choose your team and follow relevant Twitter users such as players on your team or very important people related to football/soccer. It also allows you to choose a profile image based on the country flag, football/soccer related images, and more.