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  Signs that blood type O begins to fall in love:

  O type blood likes to dress fashionable and confident in their figure and appearance. Active personality, warm and witty conversation are also important indicators.

  Once O type blood people meet a person they like, they can talk about themselves, show their best self, mention what they are proud of, and try to make a good impression on each other. This is a symbol of O type. But occasionally he will become a big fool and play the role of a clown.