My wife and I handle our Leopard 40 in exactly this way when mooring. I ghost up to the ball, she hooks it and gets 1 line secured, usually the starboard side as I can see her signals better, then we work on the port side line and adjust as needed. Get one line secured, you're not going anywhere, then worry about the other side.
Work out hand signals ahead of time, things like engines neutral, ahead slow, port, starboard, reverse. And remember, if there is ANY yelling, you're doing it wrong. We have our system working well, guests are asked to sit on the louver steps, they get underfoot otherwise.