Google Pixel 3a
Creating contact
You can save your contacts in your phone's address book. You can save additional information to a contact such as email address and personal ring tone.
Slide your finger upwards starting from the bottom of the screen.
Press Contacts.
Press the new contact icon.
Press First name and key in the required first name.
Press Surname and key in the required last name.
Press Phone and key in the required phone number.
Press Save.
Press the Home key to return to the home screen.