He avidly collected exotic, fast cars.
He avidly collected exotic, fast, cars.
It's read avidly every week by everyone from top civil servants to frontline workers.
Many fashion-conscious people are avidly following teenage fashion models and their careers via the Internet.
More often than not, you'll find that reluctant reader is avidly devouring all things in print or that shy child is blossoming with a few friends.