Gakuto is keeping his class observation day from Hayato by using a stand-in. 
What are you doing, playin' hide and seek?
Was machst du da? Verstecken spielen?
– Tu joues à quoi ? Cache-cache ?
– Chut ! Approche.
Ma che fai, giochi a nascondino?
O que está fazendo?
Brincando de esconde-esconde?
Что ты делаешь? Прячешься?