Show respect for others by the way you treat them, their time, and their property. It shows you care about them; value them. It is a nice way of honoring someone. Acknowledging their worth. Remember, in order to show respect, you must first feel respect.
The best way to teach respect? Show respect. Treat others the way you’d like them to treat you/other people. Be polite. Be sensitive. Care. Be kind. Be thoughtful. Empathize. Have compassion.
Self respect is also very important. Value yourself enough to take care of yourself. Have confidence and an assuredness about yourself. When you respect yourself, you will also know how to respect others, and others will more likely respect you as well.