Find someone in your organisation.
Agree to disagree.
Take 15 minutes, on a topic of their choice.
And try and argue against every single point they make.
Aim to construct a valid and logical argument.
Even if you agree with the points they make.
Being able to argue a point, whether you agree with it or not, is a valuable exercise in both understanding more about others, and in conversation. You have to both listen and consider your response – and look for how you construct a path of thought which isn’t necessarily based upon your own experience and world-view.
Make sure you explain the process to your colleague before you start, and anything said in the argument is for the sake of the exercise.