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A guest is invited by a host to visit their home, although they are not very close. The host doesn't intend to invite the guest to eat, but they intentionally send a signal to the host that they are hungry so that the host invites them to stay and eat. Whether the host acknowledge this or not, or whether they do share their meal or not, the important thing here is that the guest knows that they shouldn't do that, but they just don't care.
What is the word for using someone's hospitality unashamedly?