Unfortunately, all roosters crow. If he doesn't crow then he is a hen.
It seems that all normal roosters crow.
But this one doesn't seem quite normal.
So at present, I wouldn't try to predict one way or the other.
I'm pretty sure I see male-specific feathers (narrow & pointy) in the hackle area, and maybe in the saddle area as well (not quite so sure there.) So I'm pretty sure he is a cockerel, not a pullet.
(And some hens crow too, just to confuse us!)