If your not polite then god will eventually KILL you!
physical characteristics of a human is your phenotype
something that describes someone
Well, a typical "he" will be male. In human, this means that "he" will produce hormone testosterone and not estrogen which is what "she" will produce. Also, "he" will not have a mammary glands...
Behaving, Showing consideration for others, and observance of accepted social usage. Being nice in general, despite your prejudices against a person.