Death’s key meaning is transformation and change. Be prepared for these to affect your relationships. It is also an effective trecena for you to make such changes, which can be to find ways to improve a relationship, to take those steps, or even to end it completely.
The nahual of Death is associated with the North, which for one thing relates to the ancestors. This suggests that during the trecena of Death you should pay respects to your deceased love ones and friends, and to think of them and what you learned from them. If possible, place flowers on their graves and spend some time there.