Who won the golf tournament?

Well, as a matter of fact, I did.

Actually, ... /To be honest, ... /To be frank, ... /Frankly speaking, ... /Truthfully, ... /In all actuality, ... 實際上…,老實說…

Don't tell anyone. --I won't. 我不會的。

Keep it under your hat. 請保密 *慣用法

I have a confession. *坦白

I have something to confess.

I need to tell you something.

I have a confession to make.

I have a secret.

I'm keeping a secret.

So, what happened to my father?

I'll fill you in. 我把一切告訴你

I'll tell you all about it.

I'll explain everything.

I'll tell you all the details.

Quit lying to me! 不要對我說謊話

All right. I'll level with you. 好，我直說吧

I'll tell you frankly.

I'll be frank with you.

I'll be open and sincere with you.

I'll tell you the truth.

What else do you know?

That is about all I know.

I don't know anything else about it.

That's all I know.

This is just between you and me.

What is it? 什么事呀?

Let's keep our talk between us.

Let's keep this our little secret.

It's a secret.

Let me tell you a secret.

He can't keep a secret.

You've got a big mouth!

I don't have the guts to say that to my boss. *guts表示“勇氣”

A little bird told me that today is your birthday. *聽小道消息說、聽說

Wait. Who told you? 喂!誰告訴你的?

I heard it through the grapevine. *grapevine原為“葡萄藤，此表示謠言,傳聞

I just overheard it.

I didn't say anything.

I kept my mouth shut.

I didn't let the cat out of the bag. *表示“沒有泄露秘密”的固定說法。

It was a slip of the tongue.無意中說漏了嘴

Really? Didn't she know about it?

I spilled the beans. 我泄露了秘密。

I stuck my foot in my mouth.

I won't say a word.

Mum's the word. 我什么都不說

I won't say anything.

My lips are sealed. 我的嘴很緊。