Or a great quote about eye contact/interpretation from The Art of Seduction, rather:

Glances are the heavy artillery of the flirt: everything can be conveyed in a look, yet that look can always be denied, for it cannot be quoted word for word.

~Stendhal, Quoted in Richard Davenport-Hines, ED., Vice: An Anthology

It’s so true. The eyes say everything and nothing all at once.