This article discusses the guidelines for making ethical decisions regarding animals. It emphasizes the importance of being aware of first impressions, checking for all relevant facts, considering all positions and their supporting arguments, focusing on substance, not emotion or language, keeping thinking flexible, and expressing judgments precisely and explaining the reasoning which underlines it. The article also highlights the need to avoid generalizations and to base decisions on objective standards of moral binding of society or legal norms. The guidelines are based on the principles of ethical decision-making and can be applied to any situation involving animals.