If your negotiating position isn’t great but you see the other side is worried about losing the deal, you can’t go wrong by coming on strong and playing to the other side’s fears.
by這里表示以什么方法的方法狀語,coming和playing怎么樣理解這兩個動名詞的意思?
come on strong給人以強烈印象。play to the other side's fears可理解為針對他們的擔心發起攻擊。題主的問題可理解為:你表現出態度堅決并且借助他們的擔心來提條件,如此你絕不會出錯的。