What Is Kik? Here's What You Need to Know About the Messaging App
What does KK stand for?
Kik Messaging & Chat App on the App Store
The Difference Between Texting K, OK and Kk, Explained
In contrast, if it is a girl you have just met, and she says aww, it can either mean that she is attracted to you or politely rejecting you.
Yet again, you will just have to look for the signs.