The Sit is not
difficult to teach, with the dog at your left side, hold a treat over
your dog's head and say "SIT".
The treat will do the trick and
the dog will sit quickly. Do not accept a slow motion sit.
If he sits quickly then treat. If the dog sits slowly say
"no" and start again, no treat is given unless you get a fast
sit. He will learn that a fast sit gets him his treat.
Once he sits count to three,
mark his good sit with "Yes" and give him the treat.
Repeat six times then
play with your dog.