Keeping the line of talk going, the spontaneous kicked in, then depends on who your subject is, they react, and you react accordingly. A lady might be shy, turn her face away but look back to you with a smile, or like this gorl, playfully hid herself behind the door.
So are these considered snapshot? or directed shot? May be both. But htis is certainly not staged shot, where you hire a girl talent to act, it is a business but not photography.
And sometimes you can't really direct your subject, especially when it is a group, then you wait, wait for the right moment to happen. And because of this, your subject will have less suspecious on you, or tired of paying attention to you, and so you can be isolated from the happening and get the picture. Few example here all taken at almost the same spot, all happened in approx. 15 minutes. All taken with Canon 5D II, with EF 35/1.4L.