i have an eleven week old leo pup it is getting a bit lively she snaps when playing and barks if you tell her no any ideas

she is probably still trying to figure out her place in her new "human pack". you should let her know that you are the boss with i firm "NO" and if she is biting, then replace whatever she has with something she IS allowed to bite eg. dog toys, chews etc. this should help after a while.  i am doing exactly the same with my 11 week old mastiff, although he doesnt bark at us. but he does bite! all puppys do. hope this helps. :-)

Leo pups DO bark and bite when playing.Try putting a soft toy in the mouth when playing, stops both problems at once. It does take a long time for these dogs to understand what you want them to do. Mine took six months for the penny to drop. Just keep calm and persistant and all will be rewarded.

Mine still barks when playing and the biting has now been replaced by leading me by the hand gently( which is what Leo's do ).

Puppy classes are also a great help.