Where does he learn these things?!

So this week my mom was feeding brody some food by way of a fork....ive never really done that. i always use a spoon or let him pick it up himself. she put some cooked apples on the end of the fork and set it down just for a second to grab his juice. before she knew it he had the fork in his mouth,he ate the apple and laid it down as if he was saying "more please". she assumed i had taught him this, so she let him eat most of his lunch that way. she called me later and asked when i started letting him eat with a fork!of course i was shocked and told her that i had never let him do that before. when i got home from work that night, i had to see it with my own eyes of course and sure enough when i laid the fork in front of him with food on it...it his mouth it went:)