When I was a small girl, my friends and I would pick these weeds that have a yellow bloom. I don't know if it is the real name of them or not, but everyone I know calls them "buttercups." Supposedly, if you put a buttercup under your chin and the yellow of the flower is reflected upon your skin, you "like butter." If there is no reflection, you "don't like butter." I am sure how sunny the day is has NOTHING to do with whether or not the reflection appears...
I can't tell whether Ralph likes butter or not, can you?