A client mentioned that a friend might be interterested in having their website redone (this was a few months ago)

Anyways...about a week and a bit ago, I emailed this friend saying that I did a website for ____ and they mentioned that you might be intersted in have your site redone. I asked if they are still interested and to give me an email back.

So it's been a week and a bit with no reply.

How would I go about writing a follow up email? I don't want to sound pushy...but I want to get the job still.

Any ideas? Thanks a lot.