| regardful(enthusiastic, careful, cautious, aware, attentive) |
| roused(adjective, wide-awake, wakeful) |
| sagacious(adjective, understanding, cool, reasonable, keen) |
| savvy(adjective, understanding, cool, keen, sharp) |
| seeing(adjective, understanding, keen, fine, sensible) |
| sensile(adjective, understanding, open, keen, fine) |
| shamefaced(adjective, modest, nervous, humble, hesitant) |
| sharp(adjective, understanding, open, cool, keen) |
| shrewd(adjective, understanding, reasonable, sharp, smart) |
| skittish(adjective, modest, nervous, humble, hesitant) |
| susceptible(adjective, open, keen, sensible, delicate) |
| thoughtful(adjective, sound, sensible, deliberate, rational) |
| timid(adjective, modest, humble, hesitant, suspicious) |
| tuned in(expression, adjective, understanding, cool, keen) |
| unconscious(reasoning, intellectual, mental) |
| up on(expression, cool, sensible, alert, familiar) |
| viable(adjective, animate, living, alive, awake) |
| vital(adjective, animate, living, alive, awake) |
| wakeful |
| waking(wide-awake, wakeful) |