It is advisable to create a new address for receiving each time to enhance the privacy of your transaction history.
Select the coin and tap on 'receive' from home screen. From bottom right, tap on the + button.
Enter a name to label the address. Once you do that, a QR code icon will appear next to the name. Hit the QR code icon to open the QR code. You can now scan the QR code to send Bitcoin. You can also copy it or share it via email or instant messaging.