I know EVERYTHING!

I was sitting at the table with Kysaac and preping him for our Grandkids night with Grandma. I said "Kysaac, now what do you do when mom and dad are playing games with grandma?" He said in an annoyed that I would even ask him the question tone, "I already know EVERYTHING!" I then replied, "You know everything, tell me what you know" He said with conviction, "I know how to be quiet, I know how to listen, I know how to be nice, I know how to be patient, I know how to clean up, I know how to get my lunch, I know how to play with toys, I know how to go to bed and oh I know how to talk too!" So I figured what more do you need to know at age 4?
As funny as it was to hear this I seriously took it to thought and hope he's getting good examples of all these things he knows how to do!