Question

well, maybe, he said, putting his hand on his chin in an attitude of deep thought. source: a single shard
in this sentence, attitude means:

• a state of elated bliss
• the arrangement of the body and its limbs
• stress that produces elongation of the physical body
• a condition of suffering or distress

Explanation:

The sentence describes a physical gesture (putting his hand on his chin) which represents a certain body - limb arrangement while in deep thought. The word "attitude" here refers to the physical posture or the arrangement of the body and its limbs.

Answer:

the arrangement of the body and its limbs