| gumshoe(noun, person, wait, agent, spy) |
| peek(verb, watch, bug, interfere, glance) |
| peer(verb, look, watch, scrutinize, bug) |
| Nosy Parker(noun, person) |
| chatterbox(gossip, informer, tattle, tattler, tattletale) |
| butt-in(noun, person, spy, gossip, nuisance) |
| butt in(verb, expression, hinder, stir, impede) |
| nose about(verb, expression, phrasal verb) |
| nose around(verb, expression, phrasal verb, discover, watch) |
| peep(noun, verb, examine, discover, look) |
| peeper(noun, agent, spy, informer, reporter) |
| pragmatist(noun, person, spy, sneak, ferret) |
| prier(noun, investigate, participate, ferret, vacationist) |
| private investigator(noun, expression, agent, spy, informer) |
| rubberneck(noun, verb, person, look, scrutinize) |
| scout(noun, verb, person, plant, examine) |
| shamus(noun, agent, spy, informer, reporter) |
| stare(verb, look, watch, scrutinize, bug) |
| blabbermouth(gossip, informer, tattle, tattler, tattletale) |
| hearer |