| reconnoiter(verb, study, consider, examine, review) |
| spy(verb, study, consider, examine, review) |
| tune in on(verb, expression, idiom, phrasal verb, get) |
| accept(verb, get, observe, admit, attend) |
| admit(verb, get, accept, observe, attend) |
| adopt(verb, get, accept, observe, admit) |
| apprehend(verb, take, get, catch, attend) |
| attend to |
| audit(verb, get, accept, observe, admit) |
| auscult(verb, get, accept, observe, admit) |
| be a busybody |
| be attentive(verb, get, accept, observe, admit) |
| become aware(verb, expression, take, get, catch) |
| bend an ear(verb, expression, idiom, bug, spy) |
| case(verb, study, consider, examine, review) |
| check out |
| check over(verb, expression, phrasal verb, study, consider) |
| check up(verb, expression, phrasal verb, study, consider) |
| concentrate(verb, get, accept, observe, admit) |
| consider(verb, study, examine, review, case) |