So, in terms of speaking: when you're speaking in a group or in a public place, try not to speak in a very loud voice. Don't speak too loudly; keep your volume relative to other people's volume. All right? 就說話而言,當你在羣體中或是公開場合發言,試着不要很大聲的說話。說話不要太大聲,把音量降低至和其他人同樣大小就好。可以嗎?