Chew redirection for teenage dog.

Our doggo is very smart. A bit too much at times. She's currently just over 1 year old (she's only 10kg so we assume this is teenage territories). She seems to chew for attention but doesn't really love chew toys, only chews like yak milk chews or things with a LOT of flavour. (Nyla bones are interesting for a day).

We went her to stop chewing so any time she chews we say either leave it or a firm No or redirect by making her lay attention to us and reward every time. how do we know that we are rewarding the fact she is not chewing and not rewarding going up to the chewing thing, then stopping to have a treat.