TikTok is a short video platform that allows users to create and share videos with other users. To download TikTok videos, you can use third-party apps or websites that provide the ability to download videos from TikTok. Here are some steps to follow:

1. Download the TikTok app on your smartphone or tablet.
2. Open the TikTok app and search for the video you want to download.
3. Click on the three dots in the top right corner of the video and select "Save Video" or "Download Video."
4. Choose the format you want to save the video in (e.g. MP4, AVI, etc.) and click "Save."
5. The video will begin downloading to your device.
6. Once the download is complete, you can watch the video offline or transfer it to another device using a USB cable or cloud storage service.

Note: Some TikTok features may not be available after downloading videos, such as live streaming or editing tools.