Miss Manners suggests that if a friend invites someone to dinner, let them in, it should be an invitation. This comes with an awkward moment when younger guests often ask, "How much is my share of the bill?" which makes it difficult for an older person to answer. The cost of the meal and a generous gratuity should be paid when the invitation is made. However, Miss Manners advises readers not to repeat this question. An old friend who reconnected with her earlier this year and never returned a call, which led to a period of tension and a loss of friendship. If you wish to resurrect the friendship, Miss Miss Merning should ask before getting duped again.