Hotspots are those little clickable spots that pop up extra info, pics, or videos. They make courses way more fun and interesting instead of just plain text. On BMF.io, it's pretty easy to drop these hotspots on images or slides to point out cool stuff or explain things without making the screen look messy. It's a cool way to keep learners hooked and make the whole course more interactive. So if you're putting together a course there, hotspots are definitely a sweet hack to make your lessons way cooler and more fun to follow.