In Igbo land , giving a stranger colanut means that you have welcomed him, it also shows that you love him and trusts him.
N'ala Igbo, inye onye ọbịa ọjị gosiri na ị nabatara ya, o na-egosikwa na ị hụrụ ya n'anya nke ukwuu ma nwekwaa ntụkwasị obi n'ebe ọ nọ.