In that awkward situation, people often feel they have to apologize because they cannot receive guests when, actually, the fault is on the part of the visitor. Instead of understanding, though, many times the visitor becomes upset. We should do our best to not embarrass others with an unexpected visit. Choosing an appropriate time to request visiting our friends is also important. We should never disturb them at times that are reserved for resting or relaxing.
Long visits are inappropriate.
I will gladly go back fulfilling this directive of Allah. Islamic adab also teaches us not to look inside someone's home without first getting permission. Once we have gained permission to make a visit to a friend's home, we still must continue to follow the Islamic manners of visiting. We should sit where our host requests us to sit and not venture into private areas of the house, possibly invading the privacy of other residents of the house. It is also un-Islamic to uncover things that are hidden or concealed.