What my frustration is I talked with my coworkers today about how to improve my English. They said my English is enough at least but too simple, and need to speak more details. I totally agree their opinion. When it comes to write something in English, I have enough time to make sentences and brush up it as much as I want. On the other hand, there is no time when you talk with someone. I need to make sentences quickly and response them. It's impossible to me such thing for now. That's why my English could be very rough. And also I think describing or explaining something is quite difficult. Generally it's required long sentences and I can't remember appropriate words immediately. They advised me to output and speak more, but basically I am a listening person. I'm not good at speaking about myself and I don't really express my opinion. Then they gave me another option, to write down a diary as compensation for less speaking. Furthermore, actually I can't understand a lot what people speak. Continuing conversation would be difficult if you would't understand what people speak. Someone regards me as the person who understand English, but actually I just guess the contents from their reaction and the words that I caught up. When I talk with 3 or more people, I feel like I can understand English, but when I talk with someone as only 2people, I always become mute. The people who are around me are very nice and talk to me a lot in English to improve my English, but my frustration that I can't reply them well has been filing up in my mind and I feel guilty about them. However this feeling brought me good motivations. I'd like to improve my conversation skill step by step.