Krystina Cardenas watches from backstage as she waits for the curtains to go up for her opening Mexican Polkas with dance partner Caterina Carasco. Cardenas and Carasco are part of the Middlesex County based Spanish Dance Company Alborada, which performed at Hubbard Middle School in Plainfield on Thursday, May 5 for "El Dia De Los Ninos" (The Day Of The Children).