Above the photo on the right hand side click on the options button to access the drop down menu where you will find "edit your tags"
Type in the field to add a tag.
OR run two words together. This means descriptions like crazy quilting becomes crazyquilting.

Try and tag with terms everyone uses as that way mini collections on the network naturally form
Click save and you are done!
What terms do I use?
Use terms like
Type of work or technique such as;
quilting, crazyquilt, knitting, handembroidery, tatting, goldwork, stumpwork, blackwork, crossstitch etc
Tags that describe what it is such as;
sampler, doll, quilt, garment, book, postcard, fabricbook,
Materials used such as:
silk, paper, cotton
You can use other tags too such as colour or artists name. It's up to you but the main ones would be tags people are likely to want to browse the site by such as technique or object. Think in terms of doll makers want to look at dolls, so tag them that. Fabric book makers want to look at fabric books and so on. I am sure you get the idea. Think in terms of what people might look for and you have your tags.