I have no idea, I guess if you ask them

You don't

Ha ha, this is a secret

If they look at you then look away when you look at em. They are shy or showoff around you. Their friends act like they know what's going on.

Lots of ghosting

they tell you

Trust your intuition. If you feel there’s a strong connection, they most likely feel the same way you feel about them. If they’re doing things that seem out of the ordinary to their close friends for you, that’s a major sign right there 🤫

They have flirtatious ways they express themselves

Hmm I don't know