How often are you asked for a number of a friend by a different friend? Probably very frequently, which can prove a hassle. Fortunately, using the People app on your Android device, you can share contacts quickly and very easily with anyone you choose through a variety of different methods.
Start by opening up the contacts page of the person whose details you wish to share and then tap on the Menu icon (three dots) in the top-right corner of the screen. Choose the Share option from the menu and then select a sharing method from the window that appears. Options include Bluetooth, Email, Gmail and various cloud services.