Users paste in the URL for a YouTube video and then select a time to snap a picture of someone watching the video. Once the user has taken their own reaction shot, they may share the link to our site with friends in order to see their reactions. Users who receive the link watch the video on our site, and it snaps a picture of them at the time code specified by the original user. They can then view the reactions of everyone who has watched the same video through this process.