Indians greet each other with namaste. The two palms are placed together in front of the chest and the head bows whilst saying the word namaste. This greeting is for all ----- people younger than us, of our own age, those older, even strangers.
There are five forms of formal traditional greetings in the Sastras, of which 'namaskar' is one. This is understood as prostration, but it actually refers to paying homage as we do today when we greet each other with a namaste.
Namaste could be just a casual or formal greeting, a cultural convention or an act of worship. However, there is much more to it than meets the eye. In Sanskrit, namah + te = namaste. It means; I bow to you, - 'my greetings, salutations or prostration to you'. Namah can also be literally interpreted as "na ma" (not mine). It has a spiritual significance of negating or reducing one's ego in the presence of another.
The real meeting between people is the meeting of their minds. When we greet one another, we do so with namaste, which means, "may our minds meet," indicated by the folded palms placed before the chest. The bowing down of the head is a gracious form of extending friendship in love and humility.
The spiritual meaning is even deeper. The life force, the divinity, the Self or the Lord in me is the same in all. Recognizing this oneness with the meeting of the palms, we salute with the head bowed. That is why sometimes, we close our eyes as we do namaste to a revered person or the Lord -- as if to look within. The gesture is often accompanied by words like "Ram Ram,""Jai Sri Krsihna,""Jai Siya Ram" etc -- indicating the recognition of this divinity.
When we know this significance, our greeting does not remain just a superficial gesture or word, but paves the way for a deeper communion with another in an atmosphere of love and respect.