Welcome, Bruce,
I'll tell you, that question comes up again and again. You might want to use the Search function to find posts on that subject.
The fact is, and I hate to disappoint you, it's probably not possible to grow your nipples/areolas without growing breast tissue, as well. Add to that, there is no certainty that your areolas will grow beyond what is genetically predetermined. You'll just have to try NBE and find out.
Most of us that have experienced breast growth using NBE have also developed larger nipples and areolas. You have to take the one to get the other. There are lots of other consequences of NBE that you may find troubling, as well. I suggest reading some of the past discussion threads.
Again, welcome. I hope you find what you are looking for.
CK