I tend to hear "baozhong" after a gathering and they tend to say it to families or close friends when they leave. What are the differences of baohu and baozhong? Or am I mishearing things?

You definitely need to pronounce it as  'shang4'. I listened to the audio, the 师傅said shang4. Maybe it's the distant effect that we added to the speech that's making it not so clear. 出来 is also the correct pronunciation. But the voice actor used a quite natural speed and speaking style. That's why certain individual words when appear in a phrase or a sentence might not sound exactly the same as they do in isolation. It's the same in English, isn't it? Don't get too nervous about that. Be aware of it and train your ears to it.        

  A few of the expansion sentences threw me a bit. Can I say the following :

我能問一下你.........

May I ask you ....

And this expansion sentence seemed odd if I think in English and only think of  給 as "give" as opposed to "for".

酒就是給人喝的
(Alcohol is for people to drink.)

so I guess this is also correct

這個酒就是給人買的

This alcohol is for people to purchase.

Yes?

Thanks

That's correct, yes.

保护 (bǎohù) means to protect, safeguard, as in:

我们要保护环境。
Wǒmen yào bǎohù huánjìng.
We need to protect the environment.

保重 (Bǎozhòng) means to take care (of oneself), as in:

保重身体
Bǎozhòng shēntǐ
Take care of your health.

请多多保重。
Qǐng duōduōbǎozhòng.
Please take good care of yourself.