Giving advice

There are a number of ways to give advice:

- Could + infinitive
You could try phoning her.

- Should + infinitive
You should go on a long trip.

- If I were you I'd + infinitive
If I were you I'd complain to the manager.

- You might think about + -ing form
You might think about having a romantic weekend.

You use Could, If I were you I'd and You might think about when you want to be polite or formal. You can use Should to be more direct or to give stronger advice.