I guess a lot of that comes from the book - which I very much enjoyed, certainly the first of the trilogy - where there's a lot of that going on. Kinda hard to get it into a modern film, it seems.
Oh, he's the Ex Machina feller, is he? Makes sense. Full of meaningful stares and glances but far from certain whether they were actually full of any meaning. Always a bit suspicious of directors who have ladies without their vests on staring at their bodies in mirrors (c.f. Under the Skin).
never trust a man in a blue trench coat, never drive a car when you're dead