There was a hawk that inhabited a field near my house, that I had to cross to reach my LRT.
Everytime I crossed the field, it would swoop down on me, once coming as low as my height, with its talons pointed straight at my head.
As far as I know, the hawk only did this with me and not anybody else.
..while working on a golf course, we had hawks buzzzzz us daily. They too get familiar with regulars, to the point where they wouldn’t flee as quickly if they knew you. I used to get a kick out of the younger hawks playing with a kill occasionally....throw the chipmunk in the air (bout 5 feet away)...then bounce on it.
The buzzzing would come as we used to cut new hole locations...we’d be cutting away and from no where a hawk would very silently swoop over our heads, very close, a few feet.
It may be either your hat or you wear glasses.
If you wear glasses and stare at the hawk, the hawk will focus on the whites of your eyes and your pupil. Some how, that looks like food.
Had two Kites give me a tree top, high speed fly-by last weekend. I was filling up a feeder in their zone and they were showing off. Heard the first as it passed and watch the second come in, then shoot straight up. They pick off squirrels at that feeder.