Rather than pressing the Home button, use your fingers to quickly navigate between apps.
Swipe left or right with four fingers to switch between open apps. Slide up with four fingers from the bottom of the screen to reveal the multitasking view, or pinch four fingers together to return to the Home screen.
Sometimes you’ll end up using these gestures accidentally. If this is frequently the case, then you may want to deactivate them. To do so, open Settings, tap General, then Multitasking & Dock. You’ll then see an option to turn off Multitasking Gestures.