1) I taught my kids signing from 6 months old. It takes time but they got it. Then you have to wait until the child can put it to use.... appropriately. And that takes time too.
2) 'Babbling' keep in mind, is a precursor...to actual 'talking.' Even making sounds with their mouth or imitating sounds/animals/cars etc., and making sing-song singing, is all a precursor, to talking.
Boys, often develop talking later. It being gender based.
If he is not yet "pointing" to things, then ask your Pediatrician. But there is a range of ages, in which they develop these things. Each kid varies.... but it can still be within a 'normal' range. Instead of saying "ball." Say "Where is the ball?" and have the ball nearby. But again, he is only 1 year old.
3) Some kids, don't respond to their name yet. Nor point to themselves yet, if asked "Who is Johnny?" for example. So, again, ask your Pediatrician about your concerns.
Each kid varies. My kids at that age did respond to their names.
Your son is 1 year old. A good book is: "What To Expect The First Year" or, 'What To Expect- the Toddler Years." It is good book, a classic, and will explain a lot. You can find it anywhere or online.
all the best,
Susan