When you're organizing photos in portfolio—you'll want to add tags that help identify the kinds of photos you take. This will help you get the kinds of gigs you want to specialize in!
As you're editing, you'll see a button that says "Tag Photo" in the bottom right-hand corner. Once you click that, a pop-up will provide options to tag the session type, the group size, as well as the type of event.
A photo can have multiple tags. For instance, when you have a photo of a young family portrait with a dog, two children, and a baby—you can tag that image as "child," "adult," "pet," and "baby."