162 The AMA Handbook of Business Writing Deixis Deixis refers to words or phrases that make sense only in the context of a particular sentence. Example: Jeff's presentation was scheduled to begin in ten minutes, and he [refers to Jeff] was feeling nervous about it [refers to the presentation]. Demonstrative Adjectives Demonstrative adjectives are words like this, that, these, and those that tell whether a noun they modify is singular or plural and where the noun is located. Example: I've been using this hammer. Example: I climbed that mountain when I was twelve.