Can Deaf People Whistle?

I never considered that my inability to whistle could be because of my deafness. Ocean brought up whistling and the deaf. My family told me where to place my tongue, how much to open my lips and all that. All that comes out is noisy air and sometimes spit, not a note. I can’t even remember if everyone in my family can whistle, but I believe my parents and two siblings can. They’re hearing.
If you read some of the comments in Ocean’s blog entry, you’ll see a few deaf people can whistle. I always try the puckered lip method as the two finger or “F” shape method always ends with spit all over my fingers and terrible noise. Several said they can whistle backwards. It sounded like a good possibility since I’m left-handed. So maybe I need to do things backwards. I tried and it didn’t work.
Another commenter used the grass blade trick. I had forgotten about this one. I remember trying it and not succeeding. Then BEG referenced bottle whistling — although I think it’s more like humming — and that’s one thing I can do! Ha, I wrote this before I read another person’s identical comment.
Deaf258 made me laugh by sharing other abilities including tying cherry stems into knots using the tongue. I can’t do that, but I can roll my tongue or make a U shape.