User blog comment:C chrysler/how about random facts about ao no exorcist/blue exorcist/@comment-25077686-20140909174637

(I don't think this'll stir up any trouble! Hopefully it won't...)

Headcanon for Samael/Mephisto:

When he's talking to someone in his office, he makes an unconscious motion with his hand (right or left, you decide), drawing a symbol of sorts with his finger on his desk.

Example: If he could make a profit by using who he's chatting with or what they have in mind, he traces a symbol for Yen or another currency. If the conversation is boring to him or not in his favor, Samael would trace a frown or something else that relates to "No" or a negative response.

...

Is this alright?

Remember, it's JUST a  headcanon, and I felt like sharing.