Words and phrases like data and phone are completely alien to him, and despite being given permission to use it to take a picture, Leonardo's a little hesitant to at first - he doesn't want to risk breaking this marvellous little machine, not when he's only just gotten to hold it.

"And that's all I have to do? Just press it?"

He doesn't know what he means by 'saving images', but he's keen to find out. When he finally does press the icon and it clicks, he waits a moment for something else to happen. He's not sure what, exactly, but it seems like a good thing to do.