There are a few telltale signs that your screen is being recorded. First, you'll see a notification from the recording software appear in the upper-left corner of your screen. This notification will either be a solid color or feature an icon or animation unique to the recording software. Second, you may hear a faint noise from your computer while the recording is taking place. This noise is typically a high-pitched tone emitted by the recording software. Third, your computer's CPU usage will increase while the recording is taking place. This is because recording video requires a significant amount of processing power. If you see any of these signs, your screen is likely being recorded. You can confirm this by opening the recording software and checking whether a video file is being created.