Click on the URL of the project which is published on YouTube, and you will go to the page where it is published.

You can watch videos on YouTube whether you have your Google Account or not.

To post comments, you have to sign in to YouTube with your Google Account and create your channel. You can see the procedure for posting comments below.

For more details on how to create a channel, please have a look at this page.

1. Sign in to YouTube with your Google Account and launch YouTube.
2. Try uploading videos, posting comments, creating playlists, and other operations that require your channel.
3. If you do not have your channel, you will be prompted to create it.
4. Check detailed information (the name and the profile picture of your Google Account) and create your channel.