**I dont take credit for coming up with this, im only making a simple guide and sharing it **
This is a really neat trick that lots of people wish they could do, I've only personally shown a few people.
This is VERY simple, just takes practice.
Ok, so lets do it.
Step 1) Fill your mouth up with air (like blow your cheeks out)
Step 2) This is the part where people get lost for some reason, i dont get why...ok so put your tongue to the roof of your mouth (people call it "clicking your tongue")
Now "click" your tongue with your mouth closed and air in it
I usually do about 7 "clicks" - it should sound / feel like sucking kind of
Throughout this whole process, you should be holding your breath, seeing as it only takes like 10 seconds to do, this shouldnt be a problem.
Step 3) After the "clicks," blow out your cheeks all the way like the kitty in the picture, then put your hands over your lips / cheeks and put a LOT of pressure.
Step 4) Open your mouth, and slowly say "ahh" and you should see some "smoke" appear in front of you.