TikTok is a social media application where folks can share short videos of themselves. To see someone’s activity on TikTok, you need to follow them on the app. If they have previously shared their TikTok username with you, you can also view their profile by clicking on their name from within a post or comment. Once you are following someone, their activity will be visible in your News Feed. You can also use the tiktok account’s settings option to see such content.