表达类似意思的还有：

　　hit on someone/flirt with someone/

　　to make a pass at someone/ to come on to someone

　　make a pass at someone: 挑逗、示爱

　　意思是speak to or touch someone in a way that shows you would like to start a sexual relationship with them.

　　当一个陌生男子开始向我调情时，我瞪了他一眼就离开了。

　　When I found that a stranger began to make a pass at me, I gave him a stern look and left.

　　to come on to someone?

　　It's a slang expression that means "to express romantic or sexual interest in someone else."

　　to have a crush on someone，喜欢某人。

　　但是，如果你是我的好朋友，不能说I have a crush on you！！！

　　因为 "to have a crush on someone" means you like that person romantically.

　　这个短语是说对异性有好感，希望和这个人谈恋爱，才能这么说。