But afterwards we tend to ask individually what they think about it.
Let's make a twist in this practice. We want to make sure they use the language and at the same time we want them to get used to listen to their mates when they work in pairs.
I will give an example.
GROUPING: In pairs.
HOW TO DEVELOP THE ACTIVITY:
Ask your partener "What's his/her favourite day of the week and why"
Give them 2' to practise.
CHECKING: Ask the students about their parteners, not about themselves.
First time you do it may be difficult for them but if you try 2 or 3 times you will be training them to listen to their mates, asking for a purpose, and thinking of other people instead of themselves.