1. moves in a smooth, curving, or winding manner
2. insinuates oneself into a situation in a subtle or crafty way

Examples

• The river sinuates through the valley.
• The snake sinuates across the desert sand.
• She sinuates her way into every important conversation.
• The path sinuates up the mountainside.
• He sinuates through the crowd with practiced ease.
• The dancer sinuates gracefully across the stage.