@rokr To be clear - I appreciated the tip, I hadn't thought of temporarily following a hashtag, it was really useful. I should have added that in my earlier message! Thanks.
@adamwarvergeben@rokr@amoshiashwili Depends on the way you access. Not sure about official Mastodon mobile app, maybe possible. Desktop: open the hashtag - click one, or search it and click the tag in results. Top right is a follow button. Other apps may have a similar button when viewing the hashtag.