Find a safe place to practice. Concrete is the easiest surface to bike on but is unforgiving if you fall. (With correct braking technique and a properly adjusted seat, however, this should not be an issue. See steps below for more details.) Short grass or even tidy gravel would be acceptable alternatives for anyone who feels panicky about falling, but be forewarned that these surfaces make balancing harder and offer more resistance to bike tires. Wherever you end up going, make sure it has both flat areas and gentle slopes (to help you build momentum) but no tight spaces, steep slopes, or traffic.