Ground down evenly through all corners of your feet
Keep a microbend in your knee as you engage your quadriceps
Inner spiral of your thighs (picture trying to pass a foam block to someone behind you)
Find a neutral position in your pelvis (notice whether you tend to arch or round in your pelvis and low back and adjust accordingly)
Lengthen through your spine
Shoulders relaxed
Ears stacked on top of shoulders, stacked on top of hips, stacked on top of ankles
Draw chin in slightly, close your eyes, and breathe deep