James: When he smirks at you.

Sirius: When he has his hand on your thigh.

Remus: When he gets jealous and holds your hand protectively.

Peter: When he kisses your neck.

Regulus: When he gives you a certain look.

Lily: When she stands up for people, not backing down and is passionate about what she is doing.

Marlene: When she wins a quidditch match and is feeling confident or when she struts down the hallway with pride.