Are there accounts that are really important to you, and you don't want to miss any of their posts? Here's how to make sure you don't miss them:
1. Log in on your server's website or web app
2. Go to the profile page of the account you want to follow more closely
3. Click the 
notification bell (it's next to the profile's follow and options buttons)
With this active, every time that account posts it will also send you a notification. More info at https://fedi.tips/how-to-be-notified-when-someone-posts-on-mastodon/
@FediTips
I believe, but please correct me if I'm wrong, one is notified of orignal posts the user posts themselves, but not content they boost, nor any repiles they make to other posts?
Yes. It only notifies for their posts, not their boosts or replies.