We are all naturally attracted to people with idea, beliefs and interests like our own．Similarly, we feel comfortable with people with physical qualities similar to ours.
You may have noticed how people who live or work closely together come to behave in a similar way．Unconsciously we copy those we are close to or love or admire．So a sportsman’s individual way of walking with raised shoulder is imitated by an admiring fan; a pair of lovers both shake their heads in the same way; an employee finds himself duplicating his boss's habit of wagging (摇摆) a pen between his fingers while thinking.
In every case, the influential person may not consciously notice the imitation, but he will feel comfortable in its presence．And if he does notice the matching of his gestures or movements, he finds it pleasing he is influencing people: they are drawn to him.
Sensitive people have been mirroring their friends and acquaintances all their lives, and winning affection and respect m this way without being aware of their methods．Now, for people who want to win agreement or trust, affection or sympathy．Some psychologists recommend the deliberate use of physical mirroring.
The clever saleswoman echoes her lady customer's movements, tilting her head in the same way to judge a color match, or folding her arms a few seconds after the customer, as though consciously attracted by her．The customer feels that the saleswoman is in sympathy with her, and understands her needs a promising relationship for a sale to take place.
The Clever lawyer, trying in la law-court to influence a judge, imitates the great man shrugging of his shoulders, the tone of his voice and the rhythm of his speech.
Of course, physical mirroring must be subtle．If you blind (眨眼) every time your target blinks, or bite your bottom lip every time he does, your mirroring has become mockery (嘲笑) and you can expect trouble．So, if you can't model sympathetically, don't play the .
According to the passage, 'physical mirroring' (line 4, paragraph 4) means ______.