My roommate changed his hair color gold. I don’t know his intention but sometime he do like this thing. I knew his face, his look and his figure because you know I live with him, every morning saying hello. However, after changing hair color I couldn’t recognize him soon.

I was really surprised at that. Only hair color change made me confused. I don’t think his identity was black hair, but I missed. Therefore, drastic change in one part can make change whole impression. It leads to everything. Anything can be changed by small but radical change in people’s impression. This function can be used for good or bad things.