As a Verb or Adjective
1. In an academic context, to CRITICISE means to present a judgement or give an opinion about the success or value of something (e.g. a book, a film, another person's work) showing how and why you have come to that opinion.
1. The signer in the video is giving an Auslan explanation of the English term CRTICISE as it is used in an educational or academic context, especially in instructions for assignments or for exam questions. The other signs associated with the English keyword CRITICISE in Auslan Signbank would not be used in this specific context.