Before doing these steps, you should allow anonymous comments by going to Settings in Blogger and then Comments. You may enable or disable the moderation. You will soon know the importance of moderation, however. Here are the steps to make comments DoFollow:

1. Go to Blogger layout (in new Blogger) and click Edit HTML.

2. Check Expand Widget Templates.

3. Search for ‘NoFollow.’ You will find at least two of them in the code.