| unsuspicious(adjective, simple, friendly, plain, fresh) |
| untaught(adjective, simple, plain, fresh, innocent) |
| wide-eyed(adjective, simple, friendly, plain, natural) |
| artless(adjective, simple, innocent, childlike, trusting) |
| be taken in(nonresistant, gullible, unsuspicious) |
| behind one(expression, friendly, unsuspicious, kissy-huggy) |
| being a sucker(expression, idiom, nonresistant, gullible, unsuspicious) |
| buddy-buddy(friendly, unsuspicious, kissy-huggy) |
| buddy buddy(expression, friendly, unsuspicious, kissy-huggy) |
| childlike(adjective, simple, innocent, trusting) |
| clubby(friendly, unsuspicious, kissy-huggy) |
| comradely(friendly, unsuspicious, kissy-huggy) |
| credulous(adjective, simple, fresh, innocent, ignorant) |
| easily moved(expression, nonresistant, gullible, unsuspicious) |
| easily taken in(expression, idiom, nonresistant, gullible, unsuspicious) |
| faithful(friendly, unsuspicious, kissy-huggy) |
| falling hook line and sinker(expression, idiom, nonresistant, gullible, unsuspicious) |
| frank(adjective, simple, innocent, childlike, trusting) |
| friendly(unsuspicious, kissy-huggy) |
| green(adjective, simple, innocent, childlike, trusting) |