Related Clues:

• Quite enthusiastic
• Riveted
• Fascinated
• More than attentive
• Wide-eyed with wonder
• Thoroughly involved
• Aroused
• Like kids at a circus, maybe
• Completely wowed
• Fully engaged
• Deeply focused
• Kind of attention
• Eyes-a-poppin'
• Hopped up
• On the edge of one's seat