Why does his other friends stare when I talk to him?

So I have this guy friend who has this group of friends. His friends stare at me when they see him and I together and they all kind of smile. There’s 2 girls and one guy. The guy stares at me period and doesn’t care to look away. The girls will look but later talk about me when I leave. It’s nothing rude but just asking questions about me.

Why does his other friends stare when I talk to him?
Post Opinion