How was Ernesto feeling on his first day in Miss Ryan's class?

Ernesto is nervous and unsure....... watchful.

Now that they were over, Miss Hopley saw her to the door, dismissed our interpreter and without further ado took me by the hand and strode down the hall to Miss Ryan’s first grade. Miss Ryan took me to a seat at the front of the room, into which I shrank—the better to survey her.