We doubt you'll need them, but here are some very detailed tips!
Make sure the Shewee is held in the correct position by not pushing the Shewee tightly against the body. Shewee should be used by being held outside the body at all times. We know it is automatic to hold it tightly against the body - for fear of leakage, however, if you can hold the Shewee with almost 1mm between it and the labia majora, this will ensure your body does not 'fill' the Shewee – therefore leaving more room for the urine to pass freely.
Another tip is to stand in the shower or bath (urine is sterile) and make sure the back of the Shewee (pointy end) is held against the perineum but that the top front section of the funnel entrance is away from the body (labia majora) by about 1mm. You should be able to see the urine going into the funnel and then out of the outlet pipe. If you use it like this – so you can see the urine come out of your body and into the funnel- you will be able to experiment the best position for you. This will also help you notice that however hard/fast you urinate- it will not ‘fill up’! Also try holding the Shewee under a full flowing tap and experiment with the angle you need to hold it to make it work best for you.