Do you see Tristan's expression? Right at this moment Mom is reading that long, long ago Spanish & Portuguese explorers found the coconut and were taken by the three little eyes on it. The coconut reminded them of a grinning face and named them coco, some have translated the word coco to mean monkey face. So Tristan is making his great monkey face, many of us liked this interesting info!
Now for the great part! Cracking the coconut open with the hammer and nail. Dad got that job since at was quite difficult.
If someone is trying the coconut milk for the first time the expression may look something like this:I guess one has to get used to it!