Knight of Cups is a great romantic card, and can symbolize a charmer.
When I get it, it is one of the few cards that doesn't usually offer advice. It is more likely to indicate that something is about to be offered to the client. Sometimes it's a date, sometimes it's a job offer, sometimes a present. It depends on what card follows it.
So, if you've been waiting on any of these things, especially something that will emotionally benefit you, this is a great card to receive. And allow yourself to be excited to receive whatever it is.
Know too, however, that just because you are offered something, and there is no other offer around, it doesn't mean you need to take it.
If you feel a person who is trying to date you isn't right, listen to your gut and turn them down. There will be other offers. If this is a job that you don't think you want, and believe you can find something better, then keep going.
Sometimes this Knight also symbolizes imagination and dreaminess. As an Aquarius, I've been mocked my whole life as being someone in the zodiac who dreams too much. Imagination is a great tool for manifestation, but as you know, it takes action in order to fully manifest things.
So, make sure if you are deep in trying to bring something forth or being poetic about your life plans, don't allow the ratio of dreaming overcome the actual steps you need to take to bring things forth. In the immortal words of Beyonce: “I dream it, I work hard, I grind 'til I own it."
