Mr. Jones is an 'older' biter. I use the 'ram the knuckle forward' technique on him. Saying; 'No bite'
His behavior has decreased greatly in the two yeras he's been here.

Now, Bella, the kitten, is biting (teething) and I use the high pitched yelp on her. (something she'd understand)

But, if you don't want your cat to bite, remember, you can't use your hand as a toy.