How can I share one of my trips with someone else?

If you want to share the information on your trip, just go to the chosen segment, click on the three points menu at the top right of your screen, and select the share option. Then you can choose how you want to share it (via SMS, Twitter, email…).

Now you can also share your full trip. There's a button at the bottom of each trip that works in exactly the same way but for the whole trip: you can send all the information in plain text format, and there's an URL at the end of each message that automatically adds those trips to the other user's Sam account.