Focusing on all sentient beings, practise the four boundless qualities:

Love, which is the wish that they be happy;

Compassion, the wish that they be free from suffering; 

Sympathetic Joy, which is to feel happy when they are happy; 

and Impartiality, which is to treat them impartially as equals, without attachment or aversion.

-- Kangyur Rinpoche, Longchen Yeshe Dorje