Wordlessly expressed boredom

• Audibly expressed wistfulness
• Made a sound of relief
• Said "ah"
• Sounded wistful
• Expressed exasperation ... or relief
• Betrayed weariness
• Showed relief
• Emulated Al Gore in a 2000 debate
• Sounded relieved

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sigh \Sigh\, v. i. [imp. & p. p. Sighed ; p. pr. & vb. n. Sighing .] [OE. sighen, si?en; cf. also OE. siken, AS. s[=i]can, and OE. sighten, si?ten, sichten, AS. siccettan; all, perhaps, of imitative origin.] To inhale a larger quantity of air than usual, ...