Throwdown/ Gravity Pull
The string should in between your first and second knuckle of your middle finger. Have your yoyo in your hand with your palm facing up, the string should be off the top of the yoyo. throw the yoyo strait down, when it reaches the end of the string give it a tug and it will come up.
Do a throwdown, but instead of tugging at the yoyo when it reaches the end of the string keep your hand still. The yoyo should be spinning on the end of your string. When your yoyo starts to run out of spin give it a tug and it will come back to your hand.
Have your hand by your side, yoyo in hand palm facing down, and the string off the top of the yoyo. Throw the yoyo straight out in front of you, paralell to the floor. When it comes back towards you catch it palm up.
First make sure the yoyo string is off the top. Flex your arm as if you are flexing your muscle [the hand towards hip one] throw the yoyo the correct way so it goes across your body. When it reaches the end of the string it will pause for a second then return to your hand.