Poke Face is great for creating detailed sections of mesh (poly surface ) and bumps or indentations.To use the Poke Face tool to add detail to a face , select a face ,and then choose Edit Mesh – Poke Face.
A vertex is added to the middle of the face, and the move manipulator appears on the screen This lets you move the point to where you need it on the face. You can add bumps and depresions to your surface as well as create regions of extra detail. By selectively adding detail, you can subdivide specific areas of a polygon for extra detailed work, leaving lower poly counts in less-detailed areas for an efficient model.
Tips increase segments to create a rounder corner