(Corrections are in italics.)

I need advice, help me please :)

Hello! Good evening guys!! I want to learn English, can you help? I am trying to learn. I need advice on: should, ought to, had better, and could.

I'm going to do some sentences:

Ought to:

- Here, you ought to speak low.
- In the fruit shop you ought to touch the fruit with a glove so the fruit stays clean. (Note: pronouns and improper nouns aren't capitalized.) 

Advice: "Ought to" is not used often in English. "Should" is used more frequently in place of "ought to".  "Should" sounds more natural than "ought to" in most cases. Note that "to" does not follow "should" as it follows "ought". 

For example: In here, you should speak low. 

Had better:

- I had better drink two liters of water throughout the entire day.
- I had better clean my car every month.

What about....verbing:

- What about eating out tonight?
- What about doing the weekend? (Not exactly sure what you're asking here.)

Giving advice, help me plis :)

Hello! Good evening guy!! I want learn english, can you help? I am try learning giving advice: should, could, had better..., could,...

Im going to do some sentences:

Ought to

- Here, You ought to speak SOFTLY.  
- In the Fruit shop You ought to touch the fruit with a glove so the fuit is clean.

Had better: BEST TO USE "SHOULD"; HAD BETTER IS SPOKEN BUT IT IS NOT GOOD GRAMMAR

- I had better drink two litTERS of water all day.
- I had better clean my car each month.

What about....verbing:

- What about eating TOnight?
- What about doing SOMETHING THIS weekend?