Education is not that which is displayed, printed on paper and later hung on the walls. It is displayed by our conduct that is printed on the hearts of people we deal with in our day to day life.
Education is the learning that helps us judge and handle situations in a better manner.
You tend to simplify the complexities. You become flexible and open minded and big hearted.
The thick glasses of prejudice, bias, partialities, hatred and superstitions tend to break as we gain knowledge and wisdom through education.
It is not just the lessons you read in the books, the lectures you attended and the marks that you got on your report cards. Education is what shows in your behaviour and way of thinking. If it did not change even after acquiring high degrees in any field then it is a moment of worry.
According to Wikipedia:
Education is the process of facilitating learning. Knowledge, skills, values, beliefs, and habits of a group of people are transferred to other people, through storytelling, discussion, teaching, training, or research. Education frequently takes place under the guidance of educators, but learners may also educate themselves in a process called autodidactic learning. Any experience that has a formative effect on the way one thinks, feels, or acts may be considered educational.
How does it show that you are educated?
If ever you slip you know what to do. Basically, education constantly reminds you that you are learned and need to learn and learn which is a continuous process. This learning comes from experience by applying what you had previously learnt.
You become more civil. You know things. You keep yourself informed and do not react without knowledge and confirmation just on the hearsays.
According to Merriam Webster's Definition:
the knowledge, skill, and understanding that you get from attending a school, college, or university.
Therefore, it is not just the knowledge or skill but the understanding that we gain through them that includes in Education.
You are different from animals, of course! They act on impulse and survival techniques and you act according to your level of learning and intelligence paired with your education.
You have given so many years of your life to learn things and have spent a lot of money to acquire the qualifications. All the education that you saught was indeed not to attain good marks but to leave a mark of your learning, education, experience and wisdom on the hearts.
You are educated! Act like one.