One, he mirrors your actions. Subconsciously mimicking movements is a sign of attraction.
Two, he always finds a reason to touch you, whether it's a gentle nudge or a casual touch on the arm, he's trying to establish a physical connection.
Three, he’s always happy around you. Notice his mood lifting whenever you're around? That's a telltale sign.
Four, he initiates conversations. If he's always the one to start chatting, it shows he enjoys your company.
Five, he remembers small details about you. From your favorite book to your coffee order, recalling such details shows he truly cares.