This will list the things I have learned so far. I’ll update this list as necessary. If you happen to disagree with anything this list, leave a comment as to why and I’ll investigate.
Color: You’re supposed to look closely at the color. In a well lit room (against a light background) you are supposed to view the wine’s color. Is it clear? (Clear is good) Is it cloudy? There’s some other stuff with the color. I’ll update this as I understand it.
Swirling: Swirl the wine around the glass (by holding the stem, not the glass itself). This is supposed to release aromas by aerating the wine.
Smell the wine: Sniff the wine. What does it smell like? What aromas do you detect?