Parents must be especially observant during Halloween.

Pliny is especially observant on crystal habit and mineral hardness for example.

Not that they were mounting an especially observant watch.

Nicaraguans of the lower classes tend to be deeply religious but not especially observant.

Be especially observant within the first few months of treatment or after a change in dose.

Liir, not an especially observant child, said.

Though raised in an Orthodox family, Mr. Richler was not especially observant.

He said dentists should be especially observant when examining postmenopausal women, for whom strokes are a major cause of death.

Frum considers himself "a not especially observant Jew."

Emerson, though he is not especially observant, had noticed it too.