To see when a specific friend is free:

1. Head to the People page by tapping on the people icon in the bottom right of the screen
2. Ensure you're on the 'Friends' tab at the top of the screen
3. Select the friend you want to plan with
4. Tap on the orange ‘Availability’ button
5. The time & date page will show you which days / times your friend is free, busy or maybe busy
6. Select your desired date and create a plan 🙌

You can also create a time poll so your friend can vote on the best time or dates for them.