The meaning of blueberry is still very good. Generally, if a boy gives a blueberry to a girl, it implies that love is sour and sweet. It means that they want to be together forever, live a sweet and sour life, and never give up.
Blueberry is a symbol of calm and romantic. Women who like blueberry have kindness and rich feelings. The nerve is thin, easy to sentimental, also very sensitive to people, when a person is alone, often can't bear that kind of loneliness. Often eager for the object of love, but also want to be surrounded by warm love. It's a model of being loved rather than being loved. Simple personality, easy to get the favor of others.