To use Google Forms for scheduling appointments, follow these steps: 1) Access Google Forms by logging in with your account on forms.google.com. 2) Create a new form. 3) Set up your form with a title and description. 4) Add fields for personal details such as name, email, and phone number. 5) Create appointment slots using a multiple-choice question. 6) Configure response settings to collect email addresses. 7) Preview and share your form. 8) Manage responses in Google Forms or a linked Google Sheet.