Excitement
Stimulation
noun, verbal noun
こうふん
興奮 (こうふん) Excitement, Stimulation
奮起 (ふんき) Stirring, Rousing Oneself
壮行 (そうこう) Send-Off, Farewell
興味 (きょうみ) Interest
Excitement 興奮 is when your interest 興 is stirred up 奮
He feels Excitement for Koichi's こう fun ふん kanji learning website.