Andre Johnson and Matt Schaub stood on the practice field chatting and laughing, smiles planted firmly on their faces. It didn't take long for the Houston Texans' quiet Pro Bowl receiver to warm up to his new quarterback. On the first day of Houston's voluntary offseason workouts, the two looked like old friends. "Every time we see each other we're just talking, trying to learn things about each other," Johnson said. Many of the Texans joined Johnson and Schaub at the 45-minute conditioning workout, including last year's top draft pick Mario Williams and newly acquired running back Ahman Green.