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Twitter made hashtags famous. Hashtags are categories marked with a (#) in the front. For example, you might see:

#KaiOS

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When you click #KaiOS, you will get a list of tweets that include the hashtag. These are typically related to the subject. You can also search for hashtags by typing them in the search bar.

People also make up silly hashtags just for fun.

Hashtags are great to use when you want to follow a news story or when you want to learn more about a particular subject.

Try It: If you’ve made a Twitter account, try looking up a hashtag (#) that interests you.

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