In this edition of Spark, the poet Richard Blanco talks about how crazy he was about Legos. He talks about getting called a "sissy" by his grandmother and why he thinks he got the same score on the math and verbal sections of the SAT. He talks about discovering poetry because of a girlfriend (before he came out), the first poem he fell in love with and how being an engineer makes him a better poet. He also talks about cat litter. And he tries to imagine what it might be like not to be Cuban American. Tries.