I am primarily a photographer and use PS for digital editing.  Now that "photo manipulation" is  a genre in photography section galleries, I have a project.  However, this involves making a face or person appear older, much older.   The bg, etc around the person will remain the same.

I am able to effectively use layers, masks and a few PS tools but have not a clue where to begin to "age" a person as part of a photo.   Any advice will be very appreciated.

Off the bat, I assume this will require paintng of some sort?  Likely I am not very good at that but am willing to try.  Perhaps there are ways I have not considered..like parts of PS I continue to find and use even after having the program for several years. My current version is CS2.

Thanks for anything. God Bless.       TomDart.