How does swipe gesture with leap motion trigger GUI?

I am working with leap motion and it has swipe gesture. I wish I can trigger GUI after I finish the gesture but have no idea where to start with.

This is the video I am trying to make.

https://www.youtube.com/watch?v=jLp3W1gbhRk

And I successfully made unity recognise my swipe motion and here is the Update part of the script.

void Update () { Frame frame = controller.Frame (); GestureList gestures = frame.Gestures (); for (int i = 0; i 0){ GUI.Button (new Rect(0,0,0,0),"Button up"); Debug.Log("Up"); } }else if(gesture.Type == Gesture.GestureType.TYPE_SCREEN_TAP){ ScreenTapGesture tab = new ScreenTapGesture(gesture); Vector TabDirection = tab.Direction; Pointable poker = tab.Pointable; if(TabDirection.z<0){ Debug.Log("pull"); }else if(TabDirection.z>0){ Debug.Log("push"); } } } }

What's the next step of this? Please share your knowledge here. Thank you in advance.