Welcome to Ask Me Anything relating to Auslan!
I’ve been asked a question on how to sign “Thursday” – which finger to use: index or middle?
Really, either will do, however I do use middle as it is easy to move to the next part of the sign (from ‘T’ to ‘H’).
TH is now a lexicalised sign, however either finger will do.
However I can tell whether a signer is Auslan L1 (first language user) or L2 (second language user) by the choice of the finger and the movement!
Showing how to do it. But again, it is up to you.