Paul Pry
Peeping Tom
asker
auditor
autodidact
busybody
catechist
cross-interrogator
cross-questioner
detective
eavesdropper
educatee
examiner
gossip
inquisitionist
inquisitive
inquisitor
interlocutor
interpellator
interrogator
interrogatrix
interviewer
investigator
learner
monitor
nosy Parker
opinion-sampler
poller
pollster
praepostor
prefect
prober
pry
pupil
querier
querist
questioner
questionist
quidnunc
quizzer
rubberneck
rubbernecker
sampler
scholar
scopophiliac
secret agent
self-taught person
sightseer
snoop
speaker
talker
utterer
verbaliser
verbalizer
canvasser
cross-examiner
headcounter
poll taker
tester
antiquary
appraisal
aspirant
avowal
biographer
bystander
devotedness
doubter
endeavors
enquirer
enquiry
inquiry
listener
objector
observer
on-looker
outsider
perusal
philanthropist
scrutiny
searcher
seeker
seekers
solicitude
admirer