Hi, Loralee, and welcome to WikiTree! Glad to have you!
On the right side of your profile you will see Folowed Tags. Under the two you have already added, you will see [edit tags and tag comments]. Click on that and you will be taken to your tag page.
Scroll down and you will see Add New Tags. That’s where you add surnames or projects you want to follow. Be sure to add some comment as to why you are following a surname or project.
Then under the comment, you’ll see a button to Enter New Tag. Click that, and you’re done!
I hope you find your experience on WikiTree as enjoyable and profitable as I have. If you don’t understand anything or need help with a profile, don’t hesitate to ask. Lots of a great help to be found here on G2G.