o.o it is a emoticon widely used on social networks or in chats that means amazement, surprise. Can also be used by someone who is creeped out or confused.
A similar emoticon is O_O, and it has the same meaning, with the letter "O" representing the eyes and the "_" representing the nose. Often in the case of o.o, one of the letters is capitalized, that is, O.o, suggesting that the eyebrow is raised, and the person was surprised or stunned by something that was said. The o.o can also be used as a response when someone says something offensive or out of the ordinary.
"Have you ever swam with sharks? O.o"
In English this emoticon is called "wide eyed", which means "with eyes wide open" in Portuguese.
Emoticons are very popular on the internet. An emoticon is a form of paralinguistic communication, and consists of a term formed by joining two words in English: emotion (which means emotion in Portuguese) and icon (which means icon). On many occasions they are known as "smileys" (a word derived from smile, meaning smile).
Smileys or emoticons convey the user's emotional or psychological side, as they indicate a certain facial expression.
