“And I will describe something to you that you see with your own eyes: and that is that I have never seen a woman in any place who senses that a man is looking at or listening to her, except that she begins to gesture in a way that she not normally gesture, and begins to make remarks the likes of which she was not making before, and you would see her pay more attention to how she articulates her words and how she varies her postures – in an obvious and non-subtle manner. Men do the same thing if they sense the presence of women. As for the showing off of physical features, straightening of the walk, and emergence of flirtatious behavior that occurs when men and women come to be in each other’s presence or cross each other’s paths, then this is clearer than the Sun in every place.
Allah – the Mighty and Exalted – Said: {“Tell the believers to lower their eyes and protect their private parts…”} [an-Nur; 30], and He Said: {“And let the women not tap with their feet, making their hidden ornaments known…”} [an-Nur; 31]
Were it not for Allah’s knowledge of the soft manner in which women droop their eyelids when attempting to win the affection of men’s hearts, and the vile plans that they secretly concoct in order to rouse a man’s desires, He would never have revealed a verse regarding something so remote.”
[Ibn Hazm Al-Andalusi, [‘Tawq al-Hamamah’; p. 97]
Al Muqarraboon 