Can't Move Edge Loop

[shaquele]

Hi, when I'm new to modeling and am working on retopologizing a head mesh. When I try to manipulate an edge on the model's lip in order to make a mouth bag, the edges spastically move in various directions and I can't move it properly. This is even after I extrude the edge loop. I feel like I'm missing a simple step, any thoughts?The last picture is after I use the move tool to move the edge a little bit. 

[shaquele · Accepted solution]

I've figured out the issue. I had on 'Live Object' which is what made the edges and vertices spaz out. Hopefully this post will stay open so others can learn from my idiocy 😛