Final answer:
Two short blasts of a whistle in a maritime context indicate an intent to change course to port.
Step-by-step explanation:
In the context of maritime navigation or boating, two short blasts of the whistle typically indicate that a vessel is intending to change its course to port (the left side of the ship when facing forward). This is part of a broader set of signals used to communicate the actions a ship is taking or intending to take when in close proximity to other vessels to avoid collisions. These signals are standardized and internationally recognized to ensure safety and understanding across different languages and cultures at sea.