Man is a mammal and hereditary instincts generally apply.
Behaviours can be: Friendly, socialising. Form differs a bit per culture.
Humans can be abusive. This is not appreciated. It might be indirect reciprocation or an exhibition of display of power (dominance).
Discriminating.
Dominance is standard animal behaviour and therefore entirely human. Dominance only works when it is accepted. It would normally be accepted when it is considered beneficial. Environments can also dominate.
In instinctual behaviour, ratio is not really a factor.
Instinctive behaviours include:
Positive (raises chances of survival)
Negative
Destructive (not appreciated, see caring and protective)
Laughter is sometimes a good alternative to destructive behaviour on this scale from positive through negative to destructive.
Producing [Trading, Consuming] (for trading, see reciprocation)
Reciprocal (what goes around, comes around) up to and including punitive expeditions. I am quite sure it is not always the person who is harmed who reciprocates and it is not always the person who does something wrong who is reciprocated to. I call this “indirect reciprocation”.
It is usually these kind of feelings which fuel confirmation bias. In the mac vs. PC debate, for example, it is probably some kind of irrational preference which drives people to cherry pick evidence which proves their point even though the points made have no real impact on their choice.