This is the right hand facing upwards like if your arm was bent at the elbow up towards the sky. The index finger is extended and pointing up. The thumb and the other fingers are curved down into the palm.
This One Finger icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.