Related icons are the icons with matching tags, as well as all user interface icons
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Idea of Tap Icon
It's a circle with a bow above it. The bow is pointing downwards and is wrapped around the circle about half way. It kind of looks like an eye with an eye brow.
Tap and other 89,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px.