They do not forgive anyone for their trust and love
The experience and intuition of a girl we define as “smart” directs her to those partners who can meet her in every aspect, not simply because they have had a flirtation or felt good over an evening. A smart girl is clear about what she wants and does not waver from a simple pull.
They are not afraid of loneliness
They feel equally good and often better when alone. So do not rush to find someone, as they have all the time they need to carefully consider the opportunities that are offered to them and the people who approach them. So if a "smart girl" pays attention to you, take it as a clear sign of interest: be sure that she has thought of you well.
They do not need a second person to make their life simple
They do not expect the partner to bring things to the plate; change is the only constant in life, so they are looking for someone who, like them, can be adapted to any kind of circumstance. As for the others, they can do it very well on their own.
Flirting is not their priority
Smart girls, like all smart people, know how to give everything the place it deserves. Friends, family, work, school, are as important a part of their lives as a partner. So they do not feel the need for frequent flirtations to fill any gaps.
Sometimes, they can make you shy
Because they know very well what they possess, they are not dependent on the words and compliments of others, so do not expect a flirtatious smile if you say "how beautiful you have become today".
Withdrawal is only the first step
Do not think of winning her heart just by being seductive in behavior or physically. They do not fall into the 'trap' set by the first attraction, so they need more things to do for themselves.
Source: Cosmopolitan