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To move over a surface by taking steps with the feet at a pace slower than a run.
Also see DUCKWALK,
SLEEPWALK, WOBBLE, SWAGGER, WADDLE, STRUT, STRUT, AMBLE, LIMP, STAGGER.
First 100 words.
As you feel more comfortable with the first few hundreds of ASL signs, progress further with your vocabulary and learn signing more.