Watching
Part of speech: adjective
Definition: Of or relating to the action: to watch.
Part of speech: verb
Definition: To look at, see, or view for a period of time.
Example sentence: I love reading people. I really enjoy watching, observing, and being able to figure out a person, the reason they wore that dress, the reason they smell the way they do.
Observance
Part of speech: noun
Definition: The practice of complying with a law, custom, command or ruleThe custom of celebrating a holiday or similar occasionObservation or the act of watchingA rule governing a religious order, especially in the Roman Catholic church
Example sentence: Both the Obama and Romney campaigns said they pulled all their political ads today in observance of the September 11th anniversary. But politics wasn't very far offstage. The Obama campaign sees foreign policy as an advantage this year.