Took a trip to CR 7-8 years ago when I was still living in Canada. Learned to surf there and was out at Mal Pais when I saw a "big set" coming. Paddled my butt off and said nothing to the GF and watched her cop it.
Her story goes that the frechies that ran the rental place started holering at her "hey blondy, Fk'n paddle" before she was cleaned up.
Lesson - say nothing, then giggle