About this resource:
using appropriate protocols when gaining the attention of a group, such as flashing lights, waving, multiple tapping or foot stomping in some contexts, waiting for eye contact or pauses in signing and using language such as EXCUSE or SORRY INTERRUPT or QUICK INTERRUPT when interrupting a conversation
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http://rdf.australiancurriculum.edu.au/elements/2018/05/55a8d90e-6566-48f7-8b67-a40b1bee72a2.rdf