Leonardo DiCaprio: So This is How You Engrave an Oscar

Leo DiCaprio is a seasoned actor, but he's a neophyte when it comes to Oscar etchings ... so he proved when he took his trophy upstairs to get it engraved.

You gotta watch the video -- there's wonderment in Leo's eyes as the woman burns his Best Actor title onto the prize.

Feels like an odd word to describe it, but this is kinda ... adorable.