When you first signup to Covve you have 2 options:

1. Sync with your phone address book
If you choose the 'sync' option, you can select in bulk which contacts you want to treat as relationships.

To add contacts in bulk go to the main page of the app, tap on the (+) icon located at the bottom right corner, which will display the list of your contacts. Next, tap on the tick icon at the top right to bulk-select them.
2. Do not sync
If you choose the 'do-not sync' option, you can add new contacts by scanning a business card, or adding each contact manually by tapping the (+) icon at the bottom right corner.