Not to mention the character diagnosis, character grouping by blood types (or fortune-telling by blood types) and horoscope, there is even toys such as a 'love-tester'; there are many activities and commercial products related to predicting aisho.
姓名判断や血液型性格分類（ないし血液型占い）、占星術は言うに及ばずラブテスターのような玩具に至るまで枚挙に暇が無く、こういった行為や関連する物品は多い。