Lemonade You?

The pigeon has left... as I have gotten used to it, I am sure I will miss it. I wanted to let it know how I have made process with "How are you?" I can't say it right yet; it comes out as "Lemonade you?" Still, I can't understand why everybody roars with laughter when I ask such a polite question. I would say it is rather rude, don't you agree?