Instagram has decided to follow in the footsteps of Twitter in having the ability to search hashtags and staying connected with hobbies, passions, and communities by launching a similar feature for their users to make their interests more discoverable.
Following a hashtag is just like following an Instagram user. In order to get started, all you need to do is search for a topic you are interested in or tap on a hashtag from any post.
A list of relevant hashtags will then be displayed in the 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.
You will also have the ability to check the hashtags other people follow, in their profiles.
Hashtags also respect your privacy settings. For example, if you set your account to private, the hashtags you follow will only be visible to your followers.