Respect denotes both a positive feeling of esteem for a person

Person

A person is a human being, or an entity that has certain capacities or attributes strongly associated with being human , for example in a particular moral or legal context...

 or other entity

Entity

An entity is something that has a distinct, separate existence, although it need not be a material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also no presumption that an entity is animate.An entity could be viewed as a set...

 (such as a nation or a religion), and also specific actions and conduct

Conduct

Conduct may refer to:*Behavior**a personal behavior, a way of acting and showing one's behaviour**using hand gestures to direct*Action , in relation to moral or ethical precepts*Conducting a musical ensemble...

 representative of that esteem. Respect can be a specific feeling of regard for the actual qualities of the one respected (e.g., "I have great respect for her judgment"). It can also be conduct in accord with a specific ethic of respect.
Rude

Rudeness

Rudeness is a display of disrespectfulness by not complying with the social "laws" or etiquette of a group or culture. These laws have been established as the essential boundaries of normally accepted behavior...

 conduct is usually considered to indicate a lack of respect, disrespect, where as actions that honor somebody or something indicate respect.
Specific ethics of respect are of fundamental importance to various cultures.