Creo Interactive Surface Design (Style) > Using Style > About Snapping in Style > To Enable Snapping
  
To Enable Snapping
There are two ways to enable snapping.
Use a Command
1. Click Style > Operations > Snap to enable snapping.
2. Select a point and drag it to the nearest geometric entity to snap the point onto the geometric entity.
Use the SHIFT Key
Hold down the SHIFT key, and select a point and drag it to the nearest geometric entity to snap the point onto the geometric entity.