How do u get salt to stick

a little meat tenderizer usually does the trick.

I did a lookup on the subject and come up with this: If you want to salt the rims, use Rose's Lime Juice to wet the rim. Rose's Lime will allow the salt to stick better than it will if you just rub a lime wedge on the rim. If you are using plastic glasses, the Rose's Lime is a must. A lime wedge will not allow the salt to stick on a plastic glass. You can make your own temporary rimmer by placing a few napkins on a small plate. Wet the napkins with Rose's Lime. Wet the glass rims by pressing and rotating the glass rim on the napkins. Then dip the glass rims in the margarita salt. Now, can I come to your party???