In the Islamic culture when two Muslims, either known or total strangers to each other meet, they offer greetings by saying “Assalamu alaikum” which in English means “Peace be with you”. The one who pay Salam first is said to be in a better position. Answering the Salam by the one who receive it is obligatory. The answer is “Wa alaikum assalam” (And upon you be peace). I have noticed with regrets that some of us while paying or answering one's Salam do not maintain the proper norm, simply say “Wa alaikum”. But this should not be done. Salam should be offered and answered in the way as has been asked by the Almighty. Allah orders in the holy Qur'an: “When a greeting is offered to you, answer it with an even better greeting, or (at least) with its like. Allah keeps count of all things.” [Surah an-Nur: 4:86]
I sincerely hope that Muslims all over the world whether white or black, rich or poor will offer and answer Salam in proper manner and from the heart with affection.