Is this the same sign as 'that'?
Yes, this sign is often used for 'that', 'exactly', or 'spot on'. In ASL, a single sign can have multiple English translations depending on the context, the intensity of the movement, and your facial expression.
Do I need to sign this with a specific facial expression?
Facial expressions are crucial in ASL. For 'totally', your face should match the context. If you are totally agreeing, nod affirmatively. If you are totally shocked, show surprise on your face.
Can I use this sign to mean 'completely'?
Yes, in many contexts, this sign can be used to mean 'completely' or 'absolutely', especially when confirming or agreeing with a statement. However, there is also a separate sign for 'complete' or 'finish' that might be more appropriate depending on the exact sentence.