He grumbles something and adds some more detail to the drawing- the big black spot from the map, some continents to match the globe, and... maybe it's the arrow? Wherever she's from doesn't use that shape to indicate direction? Or maybe she just assumed he was pointing out the obvious- how do you get across the concept of "how?" without words? He might have to use other words.

He draws another stick Pyay at the end of the arrow, then points to the first Pyay with his pencil. "Pyay Kweengow..." he traces the arrow to the other Pyay, "then Pyay Earth?"