Another important sign to know is “what.” When you are trying to communicate with a Deaf person, knowing this sign is valuable because you can signify when you’re confused or need more information.

The typical sign for "what" when used in a standalone context (like when someone says something you didn't hear or understand). However, ASL grammar can differ from English, and there are contexts where "what" might not be signed in the same way, especially in more complex sentence structures.
Learn who to sign other important "W" words in sign:
Who | What | Where | Why | How
Learning to sign is a great start. For the moments that have to be right (a medical appointment, a parent-teacher meeting, a legal conversation) Ava connects you with a credentialed ASL interpreter over video in the Ava app, on demand or scheduled ahead. Available 24/7, with live captions included.