Greetings,
Yes, I've seen that look of wisdom in the eyes of some babies.
I love it!
I base my comments to babies (either aloud or through mental telepathy) on the 'look of wisdom' in their eyes and then watch to see how their reaction changes. If they look like they understand what I just said, we continue on in that vein.
Here's what I mean:
To baby with wise eyes, I say (or think) 'well hello there! You look like you really know what's going on around here.' (Baby focusses on me and smiles knowingly, so I continue.)
"Do you remember where you were before you came here now?" (Baby concentrates, frowns, and babbles with some effort to communicate.) Me: "Well, please try to remember that for when you get older, because it's important that people are reminded of it." (Wise baby's eyes refocus into a mode of storing up a memory.)
Or
to Baby with the innocent amazed eyes of a newbie-- Me:'Welcome to this world, sweet baby!' Baby responds with innocent amazed eyes, so I say 'you're going to really like it here!' Baby responds with innocent amazed eyes, so I say"You really look nice today!"
Baby responds with innocent amazed eyes, so I say "Kootchie kootchie koo!" And then the baby ....well, you know.
Love, Bets