The Vikings traveled a lot. How did they manage to talk to people?

How Much Viking Lore Is True?

A Few Ways I Was Surprised By My Paris To Prague Viking River Cruise

How did the vikings travel so far with their longboats? : r/Norse

Vikings' Struggles Come to Life in History Channel's Series - The New York Times

How did the Vikings communicate with each other when traveling across long distances by sea? - Quora

If this is it for safety Harrison Smith, the Vikings were lucky to have him

How much did Vikings know about the world around them, and how far did they travel? - Quora

See where the Vikings travelled

Where Did the Vikings Travel? A Legacy of Raids, Voyages, and Trade

Why did the Vikings always travel by water instead of by land? - Quora