2 Verbs to Use for the Word passerby

She kept her eyes and ears open for any sight or sound that might make it easier to find Dolly, but she did not call out, since she felt that it was practically certain the gypsy had managed, in some manner, to make it impossible for poor Dolly to cry out, lest, in his absence, she alarm some passerby and so obtain her freedom.

In the corners of the alleyways, a Latin verse engraved on the walls asked the passerby to observe the laws of sanitation, and there still could be seen on the stuccoed walls caricatures and scribbling, handiwork of the little street gamins of Caesar's day.

2 Verbs to Use for the Word  passerby