| conversant(adjective, careful, knowledgeable, cautious, aware) |
| glued(adjective, ready, alert, careful, cautious) |
| guarded(adjective, keen, anxious, restrained, alert) |
| heedful(adjective, alert, careful, knowledgeable, cautious) |
| hooked(adjective, ready, alert, careful, cautious) |
| in the know(expression, adjective, idiom, careful, aware) |
| keen(adjective, anxious, alert, careful, cautious) |
| know all the answers(expression, adjective, idiom, careful, knowledgeable) |
| know ins and outs(expression, adjective, idiom, careful, knowledgeable) |
| knowing(adjective, careful, knowledgeable, cautious, aware) |
| knowledgeable(adjective, careful, cautious, aware, attentive) |
| looking for(expression, adjective, keen, alert, careful) |
| looking to(expression, adjective, keen, alert, careful) |
| mindful(adjective, aware, attentive, wary, watchful) |
| not missing a trick(expression, adjective, idiom, ready, alert) |
| observant(adjective, keen, alert, careful, knowledgeable) |
| observative(adjective, careful, knowledgeable, cautious, aware) |
| observing(adjective, careful, knowledgeable, cautious, aware) |
| on alert(expression, adjective, keen, alert, careful) |
| on guard(expression, adjective, keen, anxious, alert) |