Why are women so shy and awkward around me?

Whenever i talk with women, they get all smiley, quiet and constantly look down. I mostly get this from women cashiers. It could be an old lady or a very cute girl. I always get stared down by women too and when i catch them they look away. Its weird because im a very well liked person (by guys), but i am a bit on the quiet and reserved side. I've been told my by friends mom that im "big" (6'1" and 200bs) and intimidating looking but once you talk to me im prove otherwise that im intimidating. It makes me feels like there's something odd about my appearance but all i wear are hoodies and jeans. I get stared at too in my work uniform which is a company hoodie and black carhart pants.

I thought it was because im attractive but i would have girls being more open to me. They just stare from a distance and ignore when i get close. I asked a couple female friends on this and one said when I asked her "youre special" which i took as im weird looking. Another point a friend made to me is that im racially ambiguous (im mixed race half filipino and german) so thats why people would stare. I just dont understand women snd never will...
Why are women so shy and awkward around me?
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