Flying a new airplane

When I am preparing to fly a new airplane, here are some things I think about to help my transition be as smooth and seamless as possible:

Know your V speeds (Vr, Vy, and Vg at a minimum)

Emergency procedures like the back of your hand

Big system differences (carb vs fuel injected?)

Does it require a complex or high performance endorsement?

Ask to get a copy of the POH for checklist usage and general information several days before the flight

Avionics setup

Weight and balance (some planes have a lower useful load than you might think)

Use your resources: Youtube videos on the plane to see what its like

There is so much to learn when flying a new airplane. When in doubt, always go up with an instructor in the aircraft to get a feel for it, understand the systems and avionics, and differences between the plane you are used to flying, in comparison to the new one.