Just take it like any other enema.
Better an empty stomach but NEVER an absolutely full one.
Drink plenty of water before starting.
Get in the Simms position and stay in it.
Pop the green shield.
Insert it gently ALL THE WAY to the ribbed part.
Take slow, deep breaths and squeeze the bottle. Leave it in and squeeze it up the best way you can. Try to get it all in if you can.
Take it out and without getting out of position, set it aside.
RETAIN IT UNTIL YOU CAN'T Probably less than 10 minutes, but it will feel like an hour!
Use all the techniques you would on a full size enema, deep- breathing, bite rag, whatever you need.
As a first timer you have to be satisfied with anything over 6 minutes, a realistic goal is around 7 minutes.
Get to the toilet QUICKLY. Just relax, don't push hard. Gentle push is OK