When Richard Feynman was asked for one sentence to summarise the most fundamental and important knowledge of physics we have, he said "Everything is made of atoms".
You see an adorable AFC at a bar, trying his hardest to pick up girls. You can't talk to him for long, because you have 5 girls dragging you away. You can say 1 sentence. What is the atom of game, the one piece of knowledge from which all methods, routines, qualities stem?
I'm going to go with "Be the version of yourself that gets girls".