1. If the words are spoken at low volume or at such a high pitch, you as listener has troubled hearing the words and listening will difficult.2. I would understand if the teacher uses different dialect.3. I would get bored if a teacher often uses tongued clicking ums during process of teaching and learning.4. I easily understand the lesson if the teacher make his/her voice clear.5. I could understand if the teacher uses unusual pronunciations.6. When I experience emotions such as worry, fear, anger and stress it can interfere with the process of my hearing when communicating.7. Psychological factors such as preoccupation, boredom, laziness and daydreaming can interfere with my hearing from presenters.8. If a whistleblower bias it interferes with my hearing.9. I as a listener cannot receive if the speaker practices prejudicial attitudes.10. It is easy to let mind drift to other business or personal interests instead of paying attention to the speaker.