How do you know a girl feels attracted to you?
Eyes: If she throws you a glance and then, as soon as you meet her gaze, lowers her eyes. Shortly afterwards she takes a second look. She may also look you in the eyes a little longer than people normally do or flash her eyebrows.
Hair: If she plays with her hair, bringing it in shape by pushing it, shaking or twisting it.
Mouth: Smiling and wetting her lips.
Voice: If she talks in a softer, warmer tone of voice than she normally does, possible with a smiling face.
Breasts: If she draws attention to her breasts by taking off her jacket, by folding her hands behind her head or by leaning forward to show cleavage.
Arms: If her arms form no barrier between you and her.
Hands: If she continuously rubs her glass or other object or if she caresses her own body.
Gestures: If she leans forwards and touches your hand, arm or shoulder.
Hips: If she really moves her hips.
Legs: Continually undoing and crossing her legs or ankles, (unconsciously) drawing your attention to them.