The surprising thing influencing a Virgo's mood...Your ruling planet of Mercury is fascinated with learning. You delve into tons of interesting subjects every day, and won't rest until you've learned everything you need to know.
But because you can be so focused about your interests, there's a danger of becoming narrow-minded in your outlook. Unfortunately, not everyone shares your endless curiosity about the world. They may not understand your single-minded focus on your little research projects, or find the day's news super fascinating.
Don't rule others out just because you don't see eye to eye, though. You may find that you can learn just as much from the people around you. Keep your mind open.