The message continues to be that unless we have a change in lifestyle by the occupants of a green building, the energy conservation measures can become a meaningless gesture.

But it's a meaningless gesture if today's soldiers are refused the care they need when they return.

The indiscriminate hugging of a dry cleaner points out that affection can be emptied of meaning through random and meaningless gestures.

Another test uses five meaningful gestures, such as waving goodbye or scratching your head and five meaningless gestures.

This protocol combines meaningful and meaningless gestures.