Well, perhaps...
Else clues• 'Sounds about right'
• Probably
• Sounds reasonable to me
• Sure, why not
• Sure...
• That sounds about right
• Uh, probably
• Uh... sure
• Um... all right
• You're probably right
• Begrudging acknowledgment
• Hesitant response
• Indefinite yes
• Reluctant assent
• Tepid assent
• Uncertain response
• Weak yes
• Words said with a shrug