I understand the Covid precoutions, but how can I tell what the glasses look like on my face if half of it is covered? I plan on coming in today, and just want to make sure what is required.

You can try them on in the store and after go online and have the 5 best lenses sent to your home

Precaution-wise, you do get to try on frames in the store. After you try one on, it gets set aside to be sanitized before being replaced on the shelves. You're right that masks are required in the stores, so to see how frames would look on your bare face, you might combine (masked) in-store with virtual try-ons, or (for a subset of frame types) at home try-ons.