Two months ago I rescued my lovely Duke, a 13 pound Chihuahua mix. I love him so much, but he is very ill-mannered. When I am walking him, he will pull the leash when he sees another dog because he wants to say hi. He is nice to all dogs and people, he just doesn't know the meaning of 'personal space'. He also licks me like crazy, and it was cute at first but now, I want it to stop. Help!