Related Clues:

• Moved stealthily
• Moved furtively
• Crept furtively
• Approached slyly, with 'up'
• Ducked (out) furtively
• Was a creeper?
• Proceeded furtively
• Crept, informally
• Crept (out), informally
• Moved stealthily, slangily
• Crept (by)