Gayly in a sentence as an adverb

Having previously filled these, either by a foot pump, which takes the place of the usual pedals, or by a curious rotary hand pump carried under the upper tube, the rider climbed to his place, opened a convenient throttle valve and sped along gayly. On a down grade he could use the momentum to repump air, getting brake effect by so doing, or he could use the air pressure to work a brake direct; as the gas tanks carried two little wheels on spiral springs underneath them, the rider could step off and leave the whole construction upright, leaning down on one of these stop-wheels.

Gayly definitions

adverb

in a joyous manner; "they shouted happily"

See also: happily merrily mirthfully blithely jubilantly