@noname same things applies in south america. but usually it applies to the elders such as grandparents,aunts uncles and family friends. if we dont know them at all then its just a simple handshake. though for the new gengration such as myself i dont really carry out this tradtion with my freinds since its idk a little werid since were closer in age but if a freind did this to me i dont question it but i can get that it is a little surprising if they dont practice this.