Consider asking to be coached, get your birth support partner to tell your midwives/ob that you want to be coached through pushing. My first two I just did a big heave-ho to get it over with and had second degree tears, my third was my biggest by far, presented with her hand against her face, but I didn't tear at all, and I was coached through that delivery.

Some people prefer to be left alone to birth by instinct, and that is usually me, but I really appreciated having someone give me some clues on how to slow down a little and ease the baby out more than I would naturally.