Hortatory text is written to persuade the readers. It is about the matter which the writers believe as the important thing Hortatory exposition will be accomplished with certain recommendation which should or should not be done. Let's see the following example of a hortatory exposition text "The Importance of Speaking English"
English nowadays has an important role in our daily life. It is the massive means of communication. Is there a strong argument which says that English will not give any benefit?
Learning to speak English well may be the best way to improve our life. It seems all the people in the world have agreed to use English to talk to each other. About 1,500,000,000 people in the world speak English. While another 1,000,000,000 are still learning English.
If we can communicate in English, we can contact people from all over the world. We can talk about our ideas and opinions on Internet discussion groups. We can chat with other interesting people to learn about their life and culture.
If we can communicate in English, we can travel more easily. English is spoken in more than 100 countries. If we lost, we can ask directions or ask for help. Who knows, English will save our life  somewhere someday.
That is why we should make every effort possible to find somebody to speak with. Where can we find people who can speak English with us? We can find them at school, shopping mall, tourist destination, etc
Above all, don't be afraid to speak English. We must try to speak, even if we make mistakes. We cannot learn without mistakes. So, speak English as much as possible!