Studying English: Personality Compatibility. Sometimes I think the most important trait to language partners is highly related to personality compatibility. When in a common studying environment we naturally select those people who are mentally closer to us: emotional background, life purposes, attitude towards existence and general goal, of course. It is easy to find people to talk in English, to converse during hours and hours about daily things, but it is hard to find students who are mentally mature and whose perceptions are accurate to understand some patterns in communication. Being able to get these patterns is a key-point in this way to master knowledge. I am not able to quickly take distance enough to identify all of my faults as a language student, because there are a huge number of details about human communication that I ignore completely and these tips I get from my language partners. This compatibility as learners is not only about age, gender, religion or absence of religion, social habits, social class or interests on language or personal interests. I talk and learn with guys and girls who are different of me in many ways, but our work is better when our minds are synchronized in a same level, same aim: learning.