1.   Coupled with the necessity of walking outside from one barracks to the next, the experience sharpens awareness of environments that are antitheses but here coexist in mutual enhancement.

2.   He advised passengers to sharpen their awareness of what happens around them.

3.   In metro Atlanta, having Christian neighbors who speak other languages and worship in different styles also sharpens awareness.

4.   Reading the sonnets knowing that Ms. Vendler is about to have her say serves to sharpen your awareness of the poetry considerably.

5.   They also sharpened his awareness of his place in the world.

6.   And hockey players have been warned not to take Sudafed, a cold remedy some take before games to sharpen their awareness.

7.   The UN population conference next week is expected to sharpen public awareness rather than come up with concrete solutions to the crisis confronting the planet, experts say.