The profession of film director can and should be such a high and precious one; that no man aspiring to it can disregard any knowledge that will make him a better film director or human being.
Compromise is but the sacrifice of one right or good in the hope of retaining another - too often ending in the loss of both.
I wouldn't treat a romantic scene any differently than any other scene. I would really say the biggest preparation was chewing gum and breath mints! For a kissing scene, it's all about the breath mints!