Possible Clues:

• Ripped the wrapping off
• Attacked, as a bag of chips
• Ripped suddenly, as an envelope (2 words)
• Got to impatiently, as a present
• Unwrapped with enthusiasm
• Unwrapped excitedly
• Attacked, as an envelope
• Unwrapped enthusiastically
• Ripped into, as a bag of chips
• Ripped into