Seriously – question everything!
Wonder what the point of everything is.
Be amazed at the world and try to figure it out.
Seek out art and pay attention to what it triggers in your mind.
Read. Like, all the time.
If it’s not science, question what you are being told. Come to think of it – question science too, just don’t be stupid about it (e.g. thinking the earth is flat isn’t questioning science, it’s just being dumb). Before questioning, make sure you understand what science really is…
Exercise your brain like a muscle. They both get stronger the more you use them.
Have fun with your mind – use it to generate your own unique world view. You never know what you might discover…