Possible Clues:

• 'That so?'
• Reply to ''That so?''
• 'Seat one up, so 'tis (2,2)'
• Reply to 'That a fact?'
• 'It's shortly that I sit up (2,2)'
• 'That so?' reply
• Gleason's "How sweet ___!"
• Bruce Hornsby and the Range "The Way ___"
• Bruce Hornsby "The Way ___"
• Reply to "That so?"