Bobbing – it’s undignified, but sometimes it’s your only option.  Bilbo tries to bow graciously and misses, it come out as bobbing on the mat.  Fili or Kili in a spider’s web bob like a toy on a wire.  Barrels bob in water, and it is the natural walking gait of elderly ravens.

• 01.095 bobbing and puffing on the mat
• 01.096 As for little fellow bobbing on the mat
• 08.106 bobbing on a wire.
• 09.020 bobbing along,
• 09.050 and bobbing away down the current.
• 09.056 of a bobbing
• 09.057 Some of those that bobbed along by him
• 15.013 and bobbed towards Thorin.