Tilt Shift

I took these photo off the stairs of Clayton Heights secondary. I used the focus lens to focus on my friends, then I took the photos back to the computer and edited them on photoshop. In photoshop I:

1.I opened the image in Photoshop and entered Quick Mask Mode by pressing Q on the keyboard.
2.Then I chose the Gradient Tool by pressing G on the keyboard.
3.Next I drew a vertical line to the starting point at the center of the in-focus area and the end of the out-of-focus. 
4.Then I Pressed Q on the keyboard to exit Quick Mask Mode and return to Standard Mode
5.Then I Choose Filter - Blur - Lens Blur
6.When I was happy with the photo I pressed ok