Well, title speaks itself. Make sure to mention your mobile network(s) along with the result(s).
Provide location of the area where you performed the test as well, if possible.
Here's the official OOKLA Speedtest app links:
Android | iOS | Windows Phone
You can either use the builtin share option or simply take a screenshot like me.
(sorry about the volume control, but the result itself is visible)
Location: Around Safari Park