Start or Join a Chalk Session > Start a Chalk Session with a Contact
  
Start a Chalk Session with a Contact
1. Open Vuforia Chalk.
2. From your My Contacts screen, tap on the contact you want to start a session with.
* 
If you haven’t added the contact yet, tap the add contact icon in the upper right corner. You can add them by email address or from your company directory.
3. Then, select if you want show them your view, or if you want to see their view.