I will teach you five(or four) card throws, plus tips.
Step 1: Straightness
This is a precise throw. Get a card and hold the right top tip(1st pic). Cock(2nd pic). Throw(3rd pic).
Step 2: Beginners
One on the top, the other on the side. Same as straightness
Step 3: Accuracy
This is more of a beginner type
Step 4: Advanced Accuracy
Index is slightly under middle finger
Step 5: Tips
Never throw at hard stuff(unless that's the point)
All of these are thrown sideways except for the first one(but it can be thrown sideways)