| quick(sharp, bright, lively, active, alert) |
| ready(sharp, bright, lively, active, alert) |
| recommendation(information, sign, notice, alert, hint) |
| scope(verb, see, mind, notice, spot) |
| sharp(bright, lively, alert, aware, attentive) |
| shotgun(verb, see, mind, notice, spot) |
| spirited(sharp, bright, lively, active, alert) |
| spot(verb, mind, notice, avoid, attend) |
| spy(verb, mind, notice, spot, avoid) |
| suggestion(information, sign, notice, alert, hint) |
| switched on(expression, sharp, bright, lively, active) |
| threat(information, sign, notice, alert, hint) |
| tip(information, sign, notice, alert, caution) |
| tip-off(information, sign, notice, alert, hint) |
| vigilant(sharp, bright, lively, active, alert) |
| wary(sharp, bright, lively, alert, attentive) |
| watch-it(noun, information, sign, notice, alert) |
| watch out(verb, expression, phrasal verb, see, mind) |
| watchful(sharp, bright, lively, alert, aware) |
| wide-awake(adjective, sharp, bright, lively, alert) |