Are you observant?
"Observant" contains the word "servant."
The word does not find its etymology in using this word "servant," rather in observe + ant, however it is a helpful reminder to serve those we observe.
I know lots of people who enjoy "people watching" at the mall.
I know few people who go out of their daily way to anticipate other's needs based off their attentive observations.
We would do well to observe people with the intention to serve those people by ministering to their needs or by addressing them before they become needs.