Konglish is used in Korea as English among Korean people. If you know or understand the Konglish, you can probably understand your Korean friends and people better. Why don't you try to learn some "Konglish"?
Also, I will tell you some good tips in Korea. For example, in a restaurant or in a store/shop for the serious travelers etc. Moreover, if there's anyone who wants to learn some Korean language, let me know.