Open your Waves app and log in to your Account. At the top right corner click on the QR-code icon.
The following pop-up will appear.
There you will find Waves address of your account. Copy it by clicking on the Copy or Share with the sender. Also, there you will find QR code that contains your address.
Also in this section you can create personal Alias. For more information please follow another article How to create an Alias
See more articles in the Account Management chapter.