As a K-selected person you need to quickly identify and avoid socializing with r-selected people. Even more importantly you want to avoid dating or marrying them as I have explained in the past. 

Unfortunately, we can't trust r-selected people to voluntarily self identify. I've had plenty of self proclaimed K-selected people respond with typical r-selected programing. Deception is an integral part of the r strategy. They lie and they take truth and twist it.