pragmatics is a study of contextual meaning which involves the interpretation of what people mean in a particular context and how the context influences what is said.
Being  more  detail,  Griffiths  2006:1  states  that  pragmatics  is  concerned  with the “toolkit” for meaning: knowledge encoded in the vocabulary of the language and
in its patterns for building more elaborate meanings in meaningful communication. In other words, pragmatics is about the interaction of semantic knowledge related to the
world,  as  well  as  contexts  of  use.  Meanwhile,  according  to  Leech  1983:10, pragmatics can be defined as the study of how utterances have meanings in situation.
Regarding  the  definitions  and  concept  of  pragmatics  as  mentioned  above, pragmatics  studies  the  meaning  of  utterances  in  relation  to  the  context  of  language
which involves how speakers can produce the best utterance to deliver their intention of the speaker`s utterances.
2. Speech Acts
a. The Definition of Speech Act
Pragmatically, an action that is done through language can be studied under the labels of speech act. Yule 1996:47 uses the term speech act to refer to the actions,
which are performed via utterances. For example, when a boss says, “You are fired”,
hisher  words  constitute  the  act  of  firing  an  employee.  In  this  example,  the  boss  is performing  an  act  via  utterance.  It  means  the  words  can  change  someone`s  status
Mey, 1994:112.
Language  is  also  full  of  implicit  meanings.  Sometimes  when  a  speaker  utters something, heshe does not just utter the utterance, but the speaker means something
behind it. One can perform three speech acts simultaneously such as locutionary act, illocutionary act, and perlocutionary act. Locutionary act has to do with the utterance
of  a  sentence  which  determine  sense  and  reference.  Illocutionary  act  deals  with  the naming  of  statement,  offers,  promises,  etc.  Then,  perlocutionary  act  deals  with  the
bringing  about  of  effects  on  the  audience  by  uttering  the  sentence  Levinson, 1983:236.
The idea proposed by Levinson is also in line with Griffith. Griffith 2006: 17 states  that  speech  act  does  not  refer  simply  to  the  act  of  speaking,  but  to  the  whole
communicative situation, including context of the utterance including the situation in which  the  discourse  occurs,  the  participants  and  any  preceding  verbal  or  physical
interaction  and  paralinguistic  features  which  may  contribute  to  the  meaning  of  the interaction.  Therefore,  in  order  for  a  speech  act  to  be  well  formed,  certain
circumstances  must  be  obtained.  These  circumstances  are  known  as  felicity  or appropriacy conditions. Austin via Cutting 2002: 18 argues that felicity conditions
are  the  context  and  roles  of  participants,  which  must  be  recognized  by  all  parties. Moreover, the action must  be  carried out  completely and the persons must  have the
right  intentions,  for  example,  “I  sentence  you  to  five  months  in  prison.”  In  this sentence, the performance will be infelicitous or inappropriate if the speaker is not a
specific person in a special context in this case, a judge in a courtroom.