The classic "come-hither" look -
It's that unmistakable alluring look that says so much by saying nothing at all.
Restless fingers -
Women tend to let their fingers do the talking with things like tracing their wine glass, twirling their pen, or lightly touching their neck area.
Hair play -
A seasoned flirt tends to flip her hair, tuck it behind her ears, or twirl strands around her fingers.
Drawing attention to her lips -
Lips are effective tools for the flirtatious woman, and if she's applying red lipstick without a mirror, it's likely she wants you to notice.
Continuous smiling -
No one smiles that much for someone they’re not interested in.
A slightly raised eyebrow - It’s a classic signal of arousal, whether you’re arousing his mind with your intellect, or something else...
Fixing his hair, clothes, etc. - When he starts straightening himself up while in a relaxed environment, he is likely signaling that he's interested.
Moving in closer -
A popular way men flirt is by moving in closer, indicating that they're completely engaged.
The smallest touch -
Men often find an excuse to touch your arm, your back, your shoulder, etc. If performed correctly, the small touch will feel electric.
Never underestimate the eyes -
Eye contact is one of the most direct ways to tell if a person is really interested. Just as the line in 'Scarface' goes: “The eyes, chico. They never lie.”