Tezel's behavior is normal and it is one of the big challenges of raising a puppy. Technically, dogs' sense of smell is much greater than their sense of taste. Terriers in particular are known for their keen noses.
However, puppies explore their world with their mouths and tongues. When you are outside, you should probably keep him on a leash and watch him closely. If he tries to lick something he should not, gently pull back on the leash and say a key word or phrase to let him know that the thing is not good for him. I say "uh uh uh" like "no no no." Or I say, "yucky, that's not good for you."
I still have to watch my dogs' mouths closely, but it is much easier than when they were puppies. It does get better and easier over time.
__________________ Kristin, Max and Teddy  |