Respect is something often given to strangers, like politeness, but many people often forget to use it at home. Showing respect for family members needs more thoughts.
Show politeness. If politeness is good for strangers, it's good for home use as well. Remember to say "please" and "thank you", "hello" and "goodbye", "good morning" and "good evening". These are basic rules of etiquette (礼节), which can show your respect for family members when they are used in communication with your family members.
Defend your family members. There's no need to go out and cause trouble to protect your family. But when you're in public, watch what you say about your family members. When you face criticism(批评) from others defend your family. After all, their bad habits have a bad effect on you, too
Give them space to grow up. Respect sometimes requires you to mind your own business, even at home. For example, respect your sister's choice of her new friend, even when you don't agree, by allowing her to make her own decisions and being there to support her when they argue with each other. Skip the "I told you so" out of respect for your sister and your family connection.
Keep communication. You don't have to agree with your family members to show them respect. Even though you don't agree with it, remember to respect a family member by continuing to communicate with that person. Once you have stated your own opinion, though, you may want to avoid the disagreeable subject.