Related Clues:

• On the edge of one's seat
• Awe-struck
• Staring open-mouthed, perhaps
• More than just expectant
• All ___ (excited)
• Enthusiastic, and then some
• Wildly eager
• Stoked, perhaps
• With eyes-a-poppin'
• Very interested
• Enthused
• All in a twitter
• Bursting with excitement
• Visibly surprised
• In a state of 10-Down