Hello everyone!

I have had two comments on my gallery image entitled "But I Need Him" that have suggested that the image might be flattered if shown in sepia tones. I'm always happy to try out this sort of suggestion and see what comes of it, but..I realize I don't really know how to achieve the sepia affect in Photoshop. Is it a matter of decreased color saturation? Or it is a colorization effect as well? Tips would be much appreciated. I'm attaching a smaller version of the image for reference purposes. (The higher resolution one is in my gallery here. Thank you in advance. :)

Mayliah