Frigid Onanoko rather have conversation develop this way.
-Sally: "its so nice today. I've never seen such a beautiful day!"
-You: "hm, that sounds very positive (doesn't it?) - what makes it so beautiful today?"
-Sally: "well, the clouds and the shiny sun."
-You: "did you know that clouds are made of evaporated water droplets?"
-Sally: Impressed by your intelligence. O RLY??!
-You: "YA RLY!!"

Girls really dig fun facts.