Photo credits: Beach: Haveseen, Dreamstime; Shanghai: Rene Drouyer, Dreamstime; South Africa: Socrates, Dreamstime; Businessman: Jonathan Ross, Dreamstime; Stage: Leigh Prather, Dreamstime; Tuscany: Raluca Tudor, Dreamstime; Computer: Leung Cho Pan, Dreamstime; Diver: Brian Lasenby, Dreamstime; Hay: Photoquest, Dreamstime; Rainforest: Antonel, Dreamstime; Model: Doug James, Dreamstime; Chinese landscape: Vladimir Grigorev, Dreamstime; Snowy scene: Anna Yakimova, Dreamstime; Hikers: Martinmark, Dreamstime; Shoppers: Monkey Business Images, Dreamstime; Rainforest: Hel080808, Dreamstime; Ruins: Thecriss, Dreamstime; Archeological dig: Demerzel21, Dreamstime; Squirrel: Taophoto, Dreamstime; Swimmers: Chad Mcdermott, Dreamstime; Wolf: Denis Pepin, Dreamstime; Pasta: Elena Elisseeva, Dreamstime; Pancakes: Stephen Mcsweeny, Dreamstime; Rose: Pavel Losevsky, Dreamstime; Penguin: Jan Martin Will, Dreamstime; Rome: Honourableandbold, Dreamstime; NY: Sally Kady, Dreamstime; Camomile: Torsten Lorenz, Dreamstime; Popcorn: Elena Elisseeva, Dreamstime; Karate: Arne9001, Dreamstime; Dumplings: Pa2011, Dreamstime; Peony: Zhanghaobeibei, Dreamstime; Baseball: Conde, Dreamstime; Surfer: Paul Topp, Dreamstime; Moscow: Ladiras81, Dreamstime; Pizza: Boarding1now, Dreamstime; Macaw: Rinus Baak, Dreamstime; Hockey: Katatonia82, Dreamstime; Panda: Hupeng, Dreamstime; Protea: Debu55y, Dreamstime; Cape Town: Ling Min Ong, Dreamstime; Oysters: Boltenkoff, Dreamstime; Soccer: Monkey Business Images, Dreamstime; Tecoma: Thungsarnphoto, Dreamstime; Bougainvillea: Natnawin Tiamkaew, Dreamstime; Shanghai: Sean Pavone, Dreamstime; Beaver: Krzysztof Wiktor, Shutterstock; Rio: isitsharp, iStock; Car: Maurie Hill, Dreamstime; Lily: Lja, Dreamstime; Reading: GlobalStock, iStock; Swinging: eyetoeyePIX, iStock; Tag: beardean, iStock; Basketball: anatols, iStock; Talking: bowdenimages, iStock; Kid explorer: naumoid, iStock