encourage people to think out loud - in addition to observing, we can also ask people to relay to us what they are doing, and what they are thinking as they are doing it.
annog pobl i feddwl yn uchel – yn ogystal ag arsylwi, gallwn hefyd ofyn i bobl ddisgrifio beth maen nhw’n ei wneud, a beth maen nhw’n ei feddwl wrth ei wneud.