[cranks]

せつない is a cliche for me. I don't recall me actually thinking 「せつねえ…」 or something like that in real life. I'll be more like 「つれえ…（辛い）」or 「胸が苦しい…」.

「懐かしい」 on the other hand is a word that frequently pops up in my mind and I don't have a good translation for. Yeah, I can say "nostalgic" but it isn't the same...

I was in Japan last week and there was this guy walking in front of me with his hip swinging right and left like he was cat walking. The word popped up in my mind was 「プリッ！プリッ！」. I don't have a good translation for that ether.