What does "He gets on and finds a seat by the window." mean in English for Spanish?

In English for Spanish, "He gets on and finds a seat by the window." means:

Él se sube y encuentra un asiento junto a la ventanana.

Listen to "He gets on and finds a seat by the window.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 3, Level 3, Scene 10