Highlight the word 'comments' on homepage

Hi, can anyone give me step by step instructions.

I am referring to the active link block underneath each post that says "Date, Tags, Categories..."
This is also where it says 'Comments."

Is there a way to highlight the word "comments" so that it stands out more? I don't think my visitors can find where or how to post a comment.

I am not adept with CSS, so I really need all the steps and code if necessary.

Thanks!