Is this one?

I don't know whether it means one or not. But at least this is the first sign my grandson has
found. He knows this sign is acceptable by many adults.

And according to the infornation from his mother, he became wiser than expected.

She heard from the teacher of the nursery school, evey morning he looks very sleepy. But she knows that he is always active and cheerful when he goes there with his mother and sister.

Yes, he knows that if he looks very sleepy he is held by a teacher.

What a smart enfant he is!!