There's a lot to talk about when it comes to Stone, though it's hard as so much of his life seems to be classified and redacted. Some through a redacted company and some simply because Stone does not like talking or thinking about himself.
Stone almost always seems to be putting on an act, but sometimes it slips up and shows how emotional he can truly become. He seems to wear this mask to keep himself in control- for himself, not anyone else. What causes him to slip up the most, is when someone he cares for is hurt [physically or emotionally]. Seemingly, he does not care what happens to him, but his loved ones are a different story.
Despite being seen as more charming, he's capable of making himself repellent if he wants to be. A lot of his personality depends on who you're talking to, having spent enough time with arrogant people who like to shove it in others faces, he's learnt how to mimic whatever personality he wants pretty effectively.
Stone has always felt comfortable about his place in the world, where he fits in the grand scheme of things. Most of the acts he puts on are for the sake of those around him, but he'll always break the illusion if he starts to grow uncomfortable with it all. He does however, seem more comfortable in an act, it's harder to slip up and tell people things they shouldn't if you're in a performance. That's why, when he leaves, he can't bare to actually explain himself to Doctor.
He loves taking orders, and actually becomes rather uncomfortable if he's given too much freedom when it comes to ideas or plans. It is something Stone is capable of, he could be a wonderful leader, he just really doesn't like having to do it. He's the last to throw his hat in when it comes to making a decision and in most cases will refuse to vote if he is the one that will tip it, unless if he feels really passionate about it. He does have a range of passions that he will speak out and stay strong and firm on.
It deeply regrets leaving Doctor with no warning, but knows he wouldn't have been able to do it, if he had to actually talk to him or write a note.
The only time Stone has been able to sleep peacefully is while resting his head on Doctor's chest.
Doctor is the only person to genuinly make Stone fee like he's better then others; and Wayde is the only person to have earned genuine laughs from something funny. [Doctor has made him laugh before, but never from something formed as a joke]
Stone loves to act as a Barista, and he has actual Barista training, as well as Bartender training for some reason - he claims he just wanted to have some true skills for his favourite hobbies.