hello there, 1st of all, I'd like to ask you, is this essay should be written in a formal format, or simply a non-formal one? I am not trying to be offensive nor impolite, but I humbly think that some of your ideas are inappropriate (if you're writing for a formal essay / for exam purposes). As for the cultural dissimilarities , there are more concrete (and better) ideas that you should stress on ( rather than elaborating about "greeting customs" and "mentalities" ).
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