What a noble question! Here are some suggestions.
First, it would be good to read some philosophy. This will get you in the philosophical frame of mind. I suggest that you start with some of the dialogues of Plato. These are entertaining as well as thought provoking. And in all honestly, philosopher are still debating the things that Plato wrote back then anyway.
Second, here is a very practical suggestion. You might want to also find a group of friends that also enjoy philosophy. In this way, your dialogues and conversations will be filled with philosophy as well.
Finally, write. This final step will help you to streamline your thoughts. There is something about writing that disciplines a person's mind.