Common questions I get asked during viva preparation workshops often relate to what candidates can or cannot do during a viva. Can candidates take time to think? (yes!) Can they call friends for advice? (no!!) Can they record their viva? (tricky one; ask your graduate school for guidance) Probably the most common question of this type is candidates asking if it is OK to make notes during the viva.
I not only think it is OK – I think it’s almost essential that candidates make notes as they go through the viva.