Hehe, if you catch him feel free to tease him. XP
Its not that hard to ambush him, especially because his ''I am a man'' guard is low around his good friends XD But carefully if he puts you as a kawaii lover in his book, your living space may get surprisingly full of ''promotional'' and ''accidentally '' brought adorable figurines and plush toys Kiku.
Wouldnt guessed Karako had a soft spot for piano music, its so sweet with her. hehe.
EDIT: p.s. first time listening to okawari but I enjoy it.