I don't know if you're referring to the empty box when texting, but it represents a character or emoji that your device is not capable of processing. For example, Apple devices have emojis that Android devices can't process, so Android users see that box (square).
You can find one at hospitals
Answer:
It is true, I do not see a way it could be false.
C : Thé strengths, weaknesses, and motivations of the characters
