People who seem diligent might be:
Working (apex)
acumen
a person smirking
Napping on a couch
A person handing out pamphlets
A person handing out pamphlets
A picture of a person.
Noun. It is a person. Remember the definition of a noun.
acumen
A person smirking
diligent
a person smirking
Napping on a couch
A person handing out pamphlets
A person laying on a couch.
diligent
A person handing out pamphlets
A person lying on a couchA person lying in bedA person lying on a couch