The button-down collar creates a crisper, more professional look, so that if the shirt fits well and is accompanied by a good tie, its inherent casualness or dweebiness is completely offset.
This look is perfect for beach weddings or when paired with short hemline dresses, where playfulness and casualness takes center stage.
"You need something?" he asked with a casualness that pissed her off, as if he didn't know why she was there.
He towered head and shoulders over the mostly female crowd and leaned with deceptive casualness that radiated danger against one of the pillars in the food court.
The entire procedure operated with a casualness to it that seemed to make fun of the serious nature of what was happening, while the rules seemed more important than what they were designed to accomplish.