Translation, please

Miles has been saying this lately:
"Look high deed!"
Alvin finally figured out that it means, "Look what I did!"

The other day, Alvin asked Miles how many fingers were on his hand. Miles held out his hand, pointed to each finger, saying, "Dee, dee, dee . . ." When he was finished counting, he turned to us and said, "Eight!" I burst out laughing. I've never even heard him say the number "eight" before.