Flying.

1st method: Press A 2 times, then the third time start flipping and you'll start soaring through the air. 

~ Mario 64 style.

2nd method:  Press A twice, then the third time flap your wings heavily and you're off!

~ Spyro, DOTD style. 

 Becoming invisible.

Hold your breath, tense your muscles and relax your body at the same time and feel your self vanish. 

~lol style.

Breathing underwater

Dive into water, and take deep breaths. You'll feel that you can breath now.

~ My style.

How to remember to do these methods.

Whiele derping around, you suddenly realise the place and people around you are different. While you remember it, if you want to fly or become invisible and all that jazz, do it while you can. It's hard to remember you're dreaming. 

~ My style.

Confusing people. 

Tell everyone this is a dream and they'll become totally confused. Just enjoy seeing the looks on their faces.

My and my sis's style.