Chico, a 2-year-old white-and-tan Chihuahua mix, is the East Bay SPCA's pet of the week. He weighs in at just less than 10 pounds. Chico's little, but he's busy. He follows his nose everywhere, and is naturally playful, endlessly curious and trusting. Take Chico for a big walk every day; give him new things to learn, and he'll be happy. He'll slow down to curl up with you in the evenings. Meet Chico at the East Bay SPCA Oakland Adoption Center, 8323 Baldwin St., Oakland, CA 94621. Visit www.eastbayspca.org to see more adoptable animals or call 510-569-0702 for more information.