The King of Cups speaks of balanced male and feminine energy; he holds all the positive qualities of both masculine and feminine. Often he indicates a literal man in your life. Usually, when he represents a ‘live person', he's referring to a very kind and loving man, who will generally have hair on the lighter end of the spectrum. Know that you are supported by the universe, in ways seen and unseen, when he appears.
In general the King of Cups represents kindness and compassion. There is an element of pure and true love in your life no matter what your situation when he appears. Nurture yourself, and allow others to nurture you, when you receive this card in a reading.
Career & Employment
In the context of work, this card usually points to a male boss or co-worker who is very much "on your team." Don't hesitate to ask him for support if you need it. If you're wondering how others feel about you at work when the King comes up, know that they appreciate and respect you and your work more than you know. Things are likely to be improving at work when the king appears.
Love & Relationships
With regard to "love questions," when the King appears, the news is very good. There are few cards that are more loving than the king of Cups. If you are looking for love, this can indicate someone who is very balanced and loving headed your way soon. The suits in the tarot are not infallible when it comes to indication of physical characteristics but in general the Cups/Cups will indicate people with hair/coloring on the lighter end of the spectrum. The king bodes well regarding love.
Finances & Income
The king of Cups can indicate a need to face the music financially. Don't avoid the reality of your financial situation. He also can point you to a need to be generous no matter how tight your financial situations might be. No matter how modest your situation is, there is doubtless something that you can and should share with others, even if it's "only" an object or your time. This can often "open up" more prosperity in our lives. Give with kindness and compassion, and know that what goes around always comes around. Don't hesitate to ask for help if you need it.
Mental & Physical Health
With regard to health questions, particularly if you are under a doctors' care, the king reminds us to trust that the healers in our lives are there for a reason. The king can indicate good health news, and trustworthy advisors/healers (particularly male ones.) Treat your body with care and compassion. Pay attention to what you are bringing into your body and your surroundings when the King appears.
With regard to spirituality, the King can be on the face of it somewhat contradictory, as he combines the generally feminine qualities of compassion, love, and concern, with the male energy of action, accomplishment, and discernment. Meditate on these combinations, and take action. How can you be compassionately active? How can you be loving and still draw boundaries? Start by drawing boundaries for yourself before you consider taking boundaries to others. "Walking meditations" are good and bring insight when this King appears.