This is an excellent guy jerking off technique if you want to try and build stamina and prolong your sessions. Regular practice of this technique can help with premature ejaculation.
Lube your cock really well and pull your cock out firmly yet comfortably while bending it upwards slightly. When your forefingers reach the head, squeeze it just enough to cause it to go down a little bit.
Note: This jerking boy technique squeezes blood out of the penis, which causes it to go slightly flaccid between strokes.