speak casually

I speak casually with a close coworker.

私は親しい同僚にタメ口で話します

I speak casually with a close coworker so that we both feel more relaxed.

私はお互いもっと気楽になるために親しい同僚にタメ口で話します

I speak casually with a close coworker after work so that we both feel more relaxed.

私はお互いもっと気楽になるために仕事の後親しい同僚にタメ口で話します

I speak casually with a close coworker at a cafe after work so that we both feel more relaxed.

私はお互いもっと気楽になるために仕事の後カフェで親しい同僚にタメ口で話します

I speak casually with a close coworker for the first time at a cafe after work so that we both feel more relaxed.

私はお互いもっと気楽になるために仕事の後カフェで親しい同僚に初めてタメ口で話します