If someone donates, for instance, an alert naming the viewer and donation amount will pop up, often with a sound effect and gif.
Stream alerts are the onscreen notifications that appear when a viewer interacts with a stream in some way. Luckily, there are a few easy options for streamers looking to make streams more engaging, and they require little to no prior experience. But turning your stream into an interactive show is another step that will invite your viewers to cheer, donate, and follow along with you. A decent camera, mic, and working knowledge of OBS software is all you need to start a stream.