How do I make comments visible?

Hi, I’ve used WP to make some websites but this time I’d also like visitors to have the ability to leave comments at the bottom of the home page. My site is at http://www.connection-junction.com/. and I use the twenty ten theme, which I really like.
How do I set this up so that comments are visible here all the time, and that new ones will appear automatically, without moderation?
I’ve looked all over the place but can’t seem to get this working this way. At the moment the comments (my test ones) will only show if I click on the comments word to bring them up but I’d prefer the front page comments to be visible all the time to inspire others to add theirs as well.
Sorry if this is a total newbys thing, I’m not even sure of the right way to ask this question, I get hopelessly confused about pages/posts/blog roll and all the rest of the terminology.I’ve tried searches but get lost in the terms and can’t follow whats being said.
thanks for your patience, help much appreciated, Roger