The best way to become a biker
Riding a motorbike is somewhat like riding a bicycle, but logically the motorised version gets fast a lot quicker. So becoming a biker means some training is appropriate, if you are competent to stay upright on a bicycle. Good motivation for a bit of expert training is that you get no airbags or seatbelt. The only protection is what you are sensible enough to wear.
A good introductory course over a day will probably provide the right introduction to the joys of riding.
You will learn:
How to change gears
How to use the brakes and clutch
Stopping and road craft
Swerving and cornering
The principles of counter-steering.
A professional instructor will help you start off as you should continue.