James: He knows it when he has training for Quidditch and you don't wish him ' good luck'.
Sirius: he knows it when you pullhis hand out your shirt and continue with what you are doing.
Remus: he knows it when You just cuddle in bed and fell asleep in your own Dorm.
Lucius: He knows it when you give him a death glare every time he says something funny or cheecky.
Severus: He knows it when you just walk away from him and his friends.
Tom: He knows it whe you yell at him every time he hugs you or kisses your cheek.
Regulus: He knows it when you ignore him when he has his hands around your waist.