To see your followers, replies, mentions, and other activity, tap the heart icon at the bottom. The All screen shows your current followers and any private accounts that you’ve requested to follow. Any private account you ask to follow needs to approve your request. Tap Follow to follow someone who’s following you. Tap the other tabs to see replies, mentions, and your verified status.
Source : https://www.zdnet.com/article/how-to-join-and-use-metas-twitter-rival-threads/#ftag=RSSbaffb68