Because of concern over the West Nile virus, groundskeepers have been especially watchful for bird carcasses, he said.

Be especially watchful for these symptoms when a new antidepressant is started or when the dose is changed.

In addition, be especially watchful because some leaf-watchers may stop suddenly to take a picture.

Be especially watchful of the areas around windows, doors, and your foundation.

On those occasions we had to be especially watchful because the kids would revolt.

Be especially watchful that children and pets do not touch them.

If there have been outbreaks of H5N1 in birds within your region, be especially watchful of small children when they go outside.

Mr. Lazarus is especially watchful about shortages of hot toys.

We socialists have to be especially watchful of this at every stage during the reform of labour rights.

Be especially watchful for these symptoms when you first start this medication or when the dose is changed.