As Oz has matured, he's had a tendency to bark more too.
I have a couple of things I do, depending on the situation.
If he's outside and barking at the fence, I do like stacwase
and make him come inside. As he comes in, I tell him, he
could have stayed outside, if he hadn't been barking.

If he barks at agility while we're waiting our turn or at any
people we pass while walking, I have him "sit", then I
bring my finger up to my lips (my hand will have a treat in it)
and that'll bring his focus from what he's barking at to looking
at me, then I very softly say "shhhh... quiet". Followed by
"good boy" when he's quiet, then the treat. Each time I try
to keep his focus on me longer, before I give him the treat.

I really try not to encourage any barking for the most part,
because of the tendency of the breed. I'm too fearful of it
getting out of hand. About the only time I encourage it is when
I tell him to go find something. I'll ask him where something
is. He'll bark in reply, then I tell him to go get it.

Par...