Young businesswoman using cell phone in office

Businessman using cell phone outdoors

Man photographing himself with two female friends using cell phone

Businessman using cell phone while on the move

Four young people using cell phones in stairway

Young couple relaxing together outdoors with cell phone and laptop computer

Man using cell phone in cafeteria

Professionals standing in lobby using cell phone and digital tablet, overhead view

Young woman text messaging in restaurant

Young woman using cell phone, man walking in background, also on cell phone

Two young businesswomen, one sitting at desk, using cell phone, the other standing next to her, touching laptop, both smiling

Two young women standing together near cardboard box, one using cell phone and holding laptop

Young woman using cell phone, man whispering in her ear