How do you sign “What’s up” in ASL?
WHAT’S UP: WHAT’S UP in American Sign Language (ASL) is the casual check-in between friends. The video below shows the sign.

How is WHAT’S UP used in ASL?
WHAT’S UP relaxes the register that HOW ARE YOU keeps polite. It opens conversations between friends and classmates, and its answer can be anything from a shrug to a story. First-lesson vocabulary includes it because real greetings are casual more often than formal.
Lesson 1 of the challenge teaches it with the greetings.
📖 WHAT’S UP is taught in Lesson 1 of ASL 101: Starting Out — Book 1 of the 216-Day Challenge →

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