| enlightened(adjective, alert, familiar, wise, knowledgeable) |
| familiar(adjective, alert, wise, knowledgeable, responsive) |
| grounded(adjective, alert, familiar, wise, knowledgeable) |
| in the know(expression, adjective, idiom, alert, familiar) |
| knowing(adjective, understanding, keen, sensible, certain) |
| knowledgeable(adjective, understanding, alert, familiar, wise) |
| notified |
| observant(adjective, perceptive, aware, insightful) |
| on to(expression, adjective, understanding, keen, sensible) |
| perceptive(adjective, understanding, alert, familiar, wise) |
| plugged in(expression, adjective, alert, familiar, wise) |
| posted(verb, adjective, familiar, informed, learned) |
| responsive(adjective, understanding, keen, sensible, certain) |
| savvy(adjective, understanding, alert, familiar, wise) |
| sensitive(adjective, perceptive, aware, observant, insightful) |
| tuned in(expression, adjective, understanding, alert, familiar) |
| up on(expression, adjective, alert, familiar, wise) |
| wise to(expression, adjective, understanding, keen, sensible) |
| with it(verb, expression, phrasal verb, understanding, keen) |
| able to recognize(expression, adjective, idiom, understanding, keen) |