Learn Italian: In società ci si comporta con educazione. - In society, one behaves with manners.

The verb is comportarsi (to behave), which is reflexive and already has its own si. When making a reflexive verb impersonal, you would theoretically get si si comporta. Because that stutters and sounds awkward, Italian changes the first si to ci, creating ci si comporta (one behaves).

Does educazione mean "education" in this context?

No, educazione is a classic false friend! Here it means "manners," "politeness," or "upbringing." If you want to talk about academic schooling or education, you would use the word istruzione.

Is the verb comporta conjugated to match the singular noun società?

No, comporta is conjugated in the third-person singular (the he/she/it form) because of the impersonal ci si structure. When you use the impersonal si (or ci si) for a general statement without a plural direct object following it, the verb always takes the third-person singular to mean "one behaves" or "people behave."

Why is it in società rather than nella società?