I just thought of something -only treat them nice and buy them things if you truly have a relationship and know them well.
Muslims are notorious for being two-faced! They say that they have learnt Hachnosos Orchim from Avruhum Aveinu. So they will invite a Jew into their home and give you the most respect while you are there, but as soon as you step out of their door they will literally “stab you in the back”!