Select from:
[1]. Touch your fingertips together to create circles (2 circles each). You can spin the camera on the ground by pinching multiple fingers together.
[2]. This motion is basically the opposite of a pinch. Start by your thumb and pointer finger together on the screen, then move them away from one another in opposite directions.
[3]. It will zoom straight up, so pinch your index fingers along their length. This method is only for beginners who are keen on the basics.
[4]. Your fingers should be about a foot apart. Tapping will open the camera app's app menu.Choose from options above and answer: What most naturally follows?

How to zoom with the camera on android
Open your android's camera app.
Most androids use different camera apps, so its icon will vary.
Pinch your fingers outward.
Answer:
[2].