I kissed my homies goodnight

holding a door for someone

To talk with someone about the thing which is concerned with.

depends on the person really but for most people like, buy them a drink, ask them how their days been and hear them out

Just smiling

笑顔で接してくれるだけで嬉しいです😃 Just smile

Telling them that you think they're very pretty/handsome

I don't know if what I do can be called kindness, but what makes me happy is, for example, being said good morning when I woke up. Because I can feel they care for me regardless online/offline (irl) so I like it

if someone smiles at me i give a smile back

shutting the fuck up

Kill my dad

making it illegal for members of Congress to trade stocks

Liking their shirt

Just listen to them and nod in agreement.