Honoring parents includes feeding them, clothing and covering them as well as accompanying them.
All the above must be done cheerfully - as the attitude counts more than the actions; one gets punished for being dour around one's parents even if one treats them with delicacies.
One may not sit nor stand in one's parents designated place in shul or at home or anywhere else where they may have a designated place.
One may not contradict one's parents.
One may not approve of one's parents in their presence (e.g. I see your point) as this indicates that one would have the ability to say otherwise.
Even if parents insult one in public one may not upset them, though one may take legal action to recuperate any monetary loss they caused.
Source: Kitzur Shulchan Aruch 143:1, 3
Tuesday, 7 Shevat 5775
Tuesday, January 27, 2015