A
She gazes in your eyes with deep interest and her pupils are dilated.

Her skin tone becomes red while being around you.

Her crossed leg is pointed towards you or if that same leg is rocking back and forth towards you.

She raises or lowers the volume of her voice to match yours.

She rubs her chin or touches her cheek. This indicates that she's thinking about you and her relating in some way...

She winks at you while talking to you or winks at you from a distance.

She exposes the palms of her hand facing you.

Biting of the lips or showing of the tongue, licking her lips or touching of her front teeth....
She starts sitting straight up and her muscles appear to be firm.

She puts her fingernail between her teeth.

She laughs in unison with you.

She touches your arm, shoulder, thigh, or hand while talking to you.

Plays with her jewelry, especially with stroking and pulling motions.

She twirls her hair around her fingers while she is looking at you.

Eyebrows raised and then lowered, then a smile usually indicates interest in you.

While talking to you, she rest an elbow in the palm of one hand, while holding out her other hand, palm up.

In a crowd she speaks only to you and focuses all of her undivided attention on you.

While talking to you, she blinks more than usual, fluttering her eyelashes.

Big smiles with upper and lower teeth showing with a relaxed face.

She speeds up or slows down her speaking to match yours.

She rubs her wrists up and down.