| 2H4 IV.iv.30 | [King Henry IV to Clarence, of Prince Henry] he is gracious, if he be observed |
| 2H4 IV.iv.36 | [King Henry IV to Clarence, of Prince Henry] His temper ... must be well observed |
| 2H4 IV.iv.49 | [Clarence to King Henry IV, of Prince Henry] I shall observe him with all care and love |
| JC IV.iii.45 | [Brutus to Cassius] Must I observe you? |
| TNK V.ii.13.1 | [Doctor to Wooer, of the Gaoler's Daughter] You should observe her every way |