One word substitute is Wriggle. Swagger: walk or behave in a very confident and arrogant or self-important way. Stumble: trip or momentarily lose one's balance; almost fall. Wriggle: twist and turn with quick writhing movements. Crawl: move forward on the hands and knees or by dragging the body close to the ground.
From One Word Substitution · English Language Competence Test
Policy of a political party
Stage between boyhood and youth
One who loves books
A pioneer of a reform movement:
That which is perceptible by touch is
Science of printing
One who can use either of his hands with ease
Equal in rank, merit or quality