Honey, there is a -learning- in this, as is with most unsettling situations.
I have neighbour that sounds just like yours. In fact before transitioning he was rude, loud, boisterous, noisy, threatening! In other words something you'd call a red-neck in your part of the world. We call them 'hairy-backs' over here

So he LOVES to laugh at me, pointing me out to others - friends of his, that fit his agenda. Though... to boot he always hangs out with VERY HOT CHICKS (short leather hot-pants and 'wife-beaters', hey) and drives the latest HOT cars on the market.
So, he is laughing, even speaking - I guess something derogatory...
I give him my sweetest smile, and blow him a kiss. I am ALWAYS VERY nice to him, and turn his behaviour into some form of compliment in my mind.
Now, just go back to our school days... boys would pull a girls plaits, be VERY offensive, mock, tease and ridicule, but guess what? Most often it was nothing else but some dumb, silly way of getting our attention. Hey, look at ME!!!
I try to feel like a queen (proper!) when I'm given such attention, and just like one, I will wave back as if it NEVER occurred to me that anyone could mean anything else but just ADORE me

In closing - you look VERY attractive hon, as seen in your avatar - and I'd be little surprised if his daft, foolish laughing is actually just to cover up for having taken notice of you. He can't pull your plaits now - so he tries something else. Boys will be boys, eh?

Axélle