Puzzled, Tan is watching his classmates who are laughing while trying to explain and demonstrate a word that is written on the board behind him. “What can it be?” And then the biggest grin appears on his usually reserved face. “Ancient!” he declares with pride. The boys put their thumbs up and Tan choses the next person to go. Playing Hot Seat with new vocabulary words was one of student favorites during the ESL Book Club conducted at their school.