“Obviously, Scroll is the gesture performed the most, but other gestures are not far behind, and we were initially very surprised by how many zooms or text selections are performed. Here’s an average displacement for 100 sessions: 200 scrolls, 60 swipes, 100 zooms, 50 long taps”

Revising the functionality of a single gesture can lead to the improvement in the interaction that users have when visiting websites using mobile devices.

Source: Unleashing Mobile Gesture UX – Usability Geek