I am there for someone who may fall down. I wait for someone who may stop by. I interpret for someone who may misunderstand what the other side says. I push someone to do things that have to be done. I stop someone to do things that shouldn't be done. I wake up before someone who may wake up for someone else. I start cooking before someone feel hungry. I am happy if that makes someone happy.
A cup of tea is always poured by someone, and it makes someone happy.