Step 1: Use lewis structure guidelines to draw the lewis structure of H2O.
Step2: Apply VSEPR notation, A X E
A=Number of central atoms
X=Number of surrounding atoms
E= Number of lone pairs on central atom
For the above molecule VSEPR notation will be A1X2E2
Step 3: Use VSEPR table to find the shape.
A1X2E2 has tetrahedral shape. So the shape of H2O molecule is angular or bent.
Download a copy of VSEPR shapes table here