Instead, signers often use a combination of signs and facial expressions to convey the same meaning depending on the context:
* "Bro" (with a specific handshape and facial expression) can be used in place of "dude" to indicate a close male friend.
* "Man" (with a specific handshape) can be used when referring to a male person in general, but may not always have the same casual tone as "dude."
* "Hey!" (with a specific handshape and facial expression) can be used as a casual greeting similar to "dude" in certain situations.
Ultimately, the best way to sign "dude" depends on the specific context and the individual signer's preference.
It's important to note that sign language is highly visual and involves not just handshapes, but also facial expressions, body language, and context.