| be on the ball |
| be with it |
| in the know(expression, adjective, idiom, alert, familiar) |
| know what's going on |
| savvy(adjective, alert, familiar, decent, wise) |
| tuned in(expression, adjective, alert, familiar, wise) |
| up on(expression, adjective, alert, familiar, wise) |
| wise to(expression, adjective, alert, familiar, wise) |
| able(adjective, decent, knowledgeable, adequate, qualified) |
| acquainted(adjective, alert, familiar, wise, knowledgeable) |
| adapted(adjective, decent, knowledgeable, adequate, qualified) |
| adequate(adjective, decent, knowledgeable, qualified, capable) |
| alert(adjective, familiar, wise, knowledgeable, responsive) |
| alive(adjective, alert, familiar, wise, knowledgeable) |
| all around(expression, adjective, decent, adequate, qualified) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| appreciative(adjective, alert, familiar, wise, knowledgeable) |
| apprehensive(adjective, alert, familiar, wise, knowledgeable) |
| apprised(adjective, alert, familiar, wise, knowledgeable) |
| apprized(adjective, knowledgeable, aware, informed, learned) |