Imagine that there is a horizontal line halfway down the circle. From this line, divide the horizontal line into thirds and give these thirds vertical lines (imaginary), thus you end up with approximate sixths.
Now place the guacamole across the tortilla, add the meat, spicy steak is my favourite, lettuce, tomato, cheese, fried onions (plenty) and finally soured cream, all in the middle top section.
Next, fold the bottom flap up to match the top, and fold into the centre the two sides, hence left and right.
You don't really need me to tell you to keep the fold pointing down, whilst you eat the open end, do you!
Enjoy!