"Friendship is a relationship of mutual affection between people".Although there are many forms of friendship, some of which may vary from place to place, certain characteristics are present in many types of such bonds. Such characteristics include affection; kindness, love, virtue, sympathy, empathy, honesty, altruism, loyalty, generosity, forgiveness, mutual understanding and compassion, enjoyment of each other's company, trust, and the ability to be oneself, express one's feelings to others, and make mistakes without fear of judgment from the friend. Friendship is an essential aspect of relationship building skills.