What is advice?

For example:
I think you should wear a suit to the interview.

Or:
You shouldn’t drink coffee in the evening.
It’ll keep you awake.

Use should/shouldn’t + verb (infinitive without to) to give somebody advice or say what you think is the right thing to do.
I
You
He
She
It
We
They
should shouldn’t
ought to and ought not to is also possible.
You ought to wear a suit.
You ought not to drink coffee.

We often use I think you should… and I don’t think you should…
I think you should change your job.
I don’t think you should speak to her.

Now it’s your turn.

I don’t know what to get my boyfriend/girlfriend for his/her birthday. It’s tomorrow!
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

I have problems going to sleep at night.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

My children want a dog, but my husband/wife is allergic to animals.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

My neighbour’s dog barks all the time and it’s driving me crazy!
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

My laptop isn’t working well – it’s very slow.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

I share a flat with a friend but he/she never does the washing-up!
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

I want to take my boyfriend / girlfriend somewhere really special on Saturday night.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

I think I’m getting a cold – I have a headache and a cough.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

I need some new clothes for a wedding, but I don’t know what to buy.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

My sister always borrows my clothes, and when I want to wear them they’re dirty.
What should I do?
I think you should…
You shouldn’t…
I don’t think you should…
That’s a good idea.
Thanks, but this is not a very good idea, because…

Write SHOULD on one side and SHOULDN’T on the other side of your miniboard.

https://en.islcollective.com/english-esl-powerpoints/grammar/modals/truth-machine-should/shouldnt/69196