Every day, millions of people share photos and videos and tag them with relevant hashtags. #onthetable, #slime and #floralnails are just a few examples of hashtags that represent the many interests and passions of Instagram's community. To make these posts even more discoverable, from now on you can follow hashtags.
Following a hashtag is just like following a friend. To get started, search for a topic you’re interested in or tap on a hashtag from any post. You’ll see relevant hashtags displayed in your search results along with related accounts. When you find a hashtag you like, open the hashtag page and tap on the follow button. You’ll begin seeing top posts from that hashtag in your feed and some of the latest stories in your stories bar. You can always unfollow a hashtag at any time.
Also, you can check out the hashtags other people follow in their profiles. Similar to people you follow, hashtags you follow respect your privacy settings. If you set your account to private, the hashtags you follow will only be visible to your followers.