The Libra influence combined with the Scorpio sun will make this guy REALLY hard to read. Scorpios often have some version of a pokerface...they try to hide what they're thinking from you. And they usually succeed. But THEY know what they're thinking. All the Libra influences mean that this guy might find HIMSELF hard to read too, and not know what he's thinking.Are you romantically interested in him, but not yet together? If so, my advice for attracting his interest and loyalty would be to SUBTLY, discreetly compliment him. No false flattery. Genuine compliments will appeal to his Leo moon and prideful, flattery-susceptible emotions as well as his Libra planets, without offending his Scorpio ability to detect lies. Stay honest, honest, honest. And SUBTLE (fighting your Saggie influences!), and gentle.
A Leo Moon and Scorp Sun (or vice versa) are a tough combination--this guy is (at least) two different kinds of stubborn...and his different ways of being "fixed" will often battle with each other. Add in all the Libra, and you have a person with a lot of internal struggles and (depending on how his planets are aspected and afflicted) a bit of a tendency to try to escape them.
It's impossible to get a real, deep astrological sense of someone without knowing their exact date, time and place of birth...it would be very helpful to know what house this one's Scorp sun is in and how it's aspected. Hope this helps a little, though!