The best Bridge players are undoubtedly those who can draw inferences quickly and correctly.
Observation is an art enabling one to discover what other people's play conceals—as well as reveals.
Observation always infers, and one inference will lead to another.
Each card played speaks through its silence, and its language must be understood.
To converse intelligently through the medium of the cards, each must be seen as it falls with eyes that grasp its meaning.