Embrace others if you can, even at work. Let them know you share their humanity. Perhaps your heart sings a similar song. Maybe you walk the same path. No human alive has has not experienced a deep loss.
Send a note. I have never been so lonely, or so relieved to hear from friends. Nils signed my guitar: Believe. I must. What else can a body do? Believe and love. The only way out is through.