1. A piece of immature graffiti amuses us immensely.

2. She makes an interesting mental leap that tells me that she understands – or at least is going in the right way towards it.

2b. The ducks are strangely unflustered by the noisy children and the dog dunking herself in the stream.

2c. Quietness.

3. The transformation of a pencil sketch as soon as the lines are inked.