| assured(adjective, understanding, keen, sensible, certain) |
| attentive(adjective, understanding, keen, sensible, certain) |
| au courant(expression, adjective, understanding, cool, keen) |
| awake(adjective, understanding, cool, keen, sensible) |
| awake to |
| behind the scenes(expression, idiom) |
| certain(adjective, understanding, keen, sensible, alert) |
| cognisant |
| conscious(adjective, understanding, cool, keen, sensible) |
| conversant(adjective, understanding, keen, sensible, certain) |
| discerning(adjective, understanding, keen, sensible, certain) |
| down with(expression, adjective, sensible, knowledgeable, witting) |
| familiar(adjective, cool, sensible, knowledgeable, witting) |
| felt(adjective, understanding, keen, sensible, certain) |
| grounded(adjective, sensible, knowledgeable, witting, aware) |
| hep |
| hip to(expression, adjective, cool, sensible, familiar) |
| in fashion(expression, adjective, cool, familiar, groovy) |
| in right mind(expression, adjective, idiom, understanding, keen) |
| in the picture(expression, adjective, idiom, sensible, knowledgeable) |