My mom’s side of the family is basque. Grew up going to the Basque Country (Bilbao, San Sebastián, Pamplona, etc). One thing I always use as an example about how distinct the language is by saying thank you and your welcome in Spanish vs Basque:

Thank you, Gracias, Eskerrik Asko You’re welcome, De Nada, Ez Horregatik

This is exciting news!