Teach him to sing!! He's really pretty. I feel like he should be addressed as Mr. Grumpy.
My dad's friend had an African Gray and one time we watched him at our house for a week while the friend was away. He was in the basement utility room where our big freezer is. My sister and I would go down there and get popsicles out of the freezer, and the popsicle company was running a promotion where if you had a popsicle stick that said "TRIP" on it, you won a trip to Florida. So my sister and I would eat our popsicles talking about how we hoped to find a "trip stick." (and never did of course, haha.)
The bird went back to his owner saying "Trip stick! Trip stick!" And of course this made no sense to my dad's friend, so he called wondering why we taught the bird to say "dipstick?" Oops, LOL.
Moral of the story... watch what you say around the bird. Even if it just sounds like it MIGHT be bad, LOL. Maybe don't teach him to say "duck."