(1)Test the water 试试看，看情况， 摸清情况
(2)Give it a shot 去试试What's the worst that could happen? 情况最坏会怎么样?
(3)I have a crush on Bob, but I'm afraid to tell him. What should I do?我很喜欢Bob，但是我不敢告诉他。我该怎么办？