-🏮Creeper snorts a lot when he is amused or trying to hold a laugh. It's another thing that makes him insecure about his laugh, because it sounds very ridiculous and stupid to his ears. Especially with his voice, which he also doesn't like. If someone else snorts, however, he will definitely tease and coo at them until they melt into a shy puddle. Especially if it happens during tickling. Basically, he is a bit of a hypocrite about tickling and love.
-🏮Someone can say anything about his laugh and he'd be like "yep, I'm aware!" proudly and openly. But even implying something positive about any other noise - snorting, giggling, snickering ect. - make him feel so flustered and get into denial mode to cope with the feelings it brings. After all, it's easier to believe that you have no worth over breaking the bad habits. And while he have built more positive mindset about himself, thanks to living with his brothers, he still has things he feels insecure about surrounding his voice and the noises he makes.
