The term 'KIND OF FRIENDLY' can be broken down into two crossword solutions: ECO (3 letters) and USER (4 letters). ECO stands for 'ECOLOGICAL' or 'environmentally conscious, ' which is a type of FRIENDLY behavior that is focused on preserving the environment. USER stands for 'USER-FRIENDLY, ' which is a type of FRIENDLY behavior that is focused on making products and services easy to use and understand. Both ECO and USER are types of FRIENDLY behavior that are beneficial to society.