أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
There is no need to create a boundry and start thinking which customer to deal or not to deal with. You have to give resepct and all attentions to your customer/s regardless where they are from. Be always very optimistic and embrace others!
For me interacting to any person whether its related to professional life or personal its all depends on the attitute of the person to whom you are dealing with.