Practice renouncing a particular pattern of speech, such as the need to complain, express anger, repeat gossip, or indulge in memories. Start each day with a commitment to let go of of the impulse to use unwise speech. Try to make your speech unhurried, calm, and thoughtful, even in the face of provocation, so that in the renunciation of unhealthy speech, wholesome speech comes naturally.

Christopher Titmuss in Mindfulness for Everyday Living