The process of communication is one in which people convey their meaning to others in an attempt to reach a mutual understanding. Interspecies communication is possible to an extent, such as a lion tamer being able to control a lions actions to a degree. For purposes of this discussion however, the focus will remain on humans interacting with humans.
A set of skills in both parties are necessary in order for communication to function effectively. In the case of speech, those skills involve several main steps. Here follow discussions of those steps.
First comes speaking. When someone has something to say, they want to share it with others. To do so, they must find listeners. If one speaks and no one listens, communication has not occurred. This is a maddening point repeated by teachers who often feel that their students are ignoring them, which the students often are doing. Once listening is taking place, observing can follow, in which the teachers statements and body language, including gesticulations, can be witnessed by the students. These movements often add a little color to the words themselves, which can come out somewhat plainly at times.
To demonstrate that they have listened and observed, students can perform the next step in the process, which is to ask questions about aspects of what was said that are unclear to them. Asking detailed questions implies that the student has analyzed what was said and either found a deficiency in the explanation, or is just struggling to grasp the concept.
After making their inquiry, a student will be able to perform the final step in the communication process, that of evaluation. They can determine if the information as given, which may have included an answer to a question, makes sense to them and should thus be added to their memory.
When things in one persons brain arrive into another persons brain and stay there, even temporarily, the communication process has successfully occurred. It is through this process that humans are able to achieve their best, by attracting the attention of others attuned to their message.