They can also use nonverbal communication to emphasize that they are being sarcastic in what they say (Mounts). These nonverbal signs can be rolling your eyes, shaking your head, or making a hand gesture (Mount). Mainly, however, it is the verbal aspects of sarcasm that classify it as a form of non-verbal communication (Mounts). These verbal aspects are tone of voice, emphasis on words or sentences, or change in the sound of a particular word (Montages). All of these aspects are influenced by the culture in which sarcasm is used. Since there are many different cultures in the world, there are many ways in which sarcasm can be used and interpreted as a form of verbal expression.