The judgment
咸：亨，利貞，取女吉。
Influence succeeds. It is favorable to stay true, and taking a wife is lucky: attraction works when it is honest.
Received text; plain English after the Chinese. Source: 周易經傳 (public-domain). Passage: hex31.judgment.
The image
象曰：山上有澤，鹹。君子以虛受人。
A lake on the mountain: influence. A capable person empties themselves to receive others.
Received text; plain English after the Chinese. Source: 周易經傳 (public-domain). Passage: hex31.image.
Influence begins in the body before it reaches the words.
The six lines
Each line is a stage, from the bottom of the hexagram to the top. Open any line to read it in plain English.
初六 咸其拇。 The influence reaches the big toe. It has started, but it has not moved you yet.
The influence reaches the big toe. It has started, but it has not moved you yet.
六二 咸其腓，凶，居吉。 Influence in the calf: to move now is bad, to stay is good. The impulse is there; do not obey it yet.
Influence in the calf: to move now is bad, to stay is good. The impulse is there; do not obey it yet.
九三 咸其股，執其隨，往吝。 Influence in the thigh, following whatever pulls. Going on like this brings regret: you are being led, not choosing.
Influence in the thigh, following whatever pulls. Going on like this brings regret: you are being led, not choosing.
九四 貞吉悔亡，憧憧往來，朋從爾思。 Stay true and regret disappears. But if you keep going back and forth, only your own friends will follow your thoughts.
Stay true and regret disappears. But if you keep going back and forth, only your own friends will follow your thoughts.
九五 咸其脢，無悔。 Influence in the back, the part that does not see. No regret: some feeling works without being watched.
Influence in the back, the part that does not see. No regret: some feeling works without being watched.
上六 咸其輔，頰，舌。 Influence in the jaw, cheeks, and tongue. Talk is doing the work now; words can move people, but they are the surface.
Influence in the jaw, cheeks, and tongue. Talk is doing the work now; words can move people, but they are the surface.