As philosophy is a pursuit of meaning, you might try to ask certain questions, some of which apply to everyday things.
- Why did I choose to do X instead of Y and what values did this decision stem from? What does this decision mean?
- Where do my values come from?
- What does it mean that I prefer X to Y and Z?
This type of reflection can begin to make inquiry a natural element of your thinking.
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.