cant move a single vertex Hi i'd like to know how to move just one vertex, i need to change the position of a vertex but when i select and move  the other vertex come together. I just started blender yesterday and today is my attempt to try model with tutorials but it still very hard!! i need to do what this guy did at https://www.youtube.com/watch?v=dgUx8v6u7tM 3:24  

EDIT The Proportional Editing is already disabled
You might have proportional editing on. If you want to use it you have to press G and then move MMB  up to shrink the size of the area.