Mask the Top Horizontal Trim

get my masking down this wall. I'm going to, just like this, turn this corner. Now my tape is hanging down and I'm gonna begin just working down. Well, just like that, I'm gonna pull it, pull it out and I'm just going to move it in with my fingers, these two fingers, move it in, press it. Just like this, so we're gonna work it down, tape's hanging, press it up against the wall,