How to render uploaded photos with NodeJS and Express?

I generally post examples of my best shot at what I'm asking about, but in this case, I have no idea where to start (haven't uploaded photos before in other languages).

So how does one go about rendering uploaded photos. I'm using Node v0.4.2, Express 1.0.8, and Mongoose 1.0.16 and have uploading of images working (they end up in ~/tmp right now).

Thanks.