Hey, that's pretty good!

Hello, that is very decent!

Greetings, person who I am currently speaking to, the item which we are currently observing truly pleases me.

I now greet you, the specific person, whom I happen to be speaking to in this exact moment, the current subject we are discussing and observing triggers my brain to produce dopamine, oxytocin, serotonin, endorphins, chemicals, that trigger an emotion known as happiness.