A great breathing technique to help freshen or wake you up.
Arms in front of you pointing up (by your shoulders) with palms out loose fists
Regular breath in and then out
You are going to punch the sky whilst taking sharp breath in through the nose only
Than pump you arms down exhaling through the nose
Repeat 15 or so times, after about 7 close your eyes
After you have finished observe what is in your body and mind.
Hands in your lap
Now for another round