please and thank you

mason has been getting really, really good with his please and thank yous.  he signs them both, but comes pretty close to saying "please" (it sounds more like "pweez").  it is so cute to see him signing thank you to strangers who might give him things (think food samples at stores).  they have no idea what he is doing and he just keeps trying to get their attention.  i usually jump in a translate for him so that he knows the job is done and he can walk away.  it is nice to see he is so dedicated to his manners.  love.