Dozed, with "off"

• By playing three of diamonds one indicated support
• Assented, in a way
• Caught a wink
• Let a slip pass
• Goofed
• Signaled agreement
• Signalled agreement
• Signaled assent

WordNet Word definitions in WordNet
v. express or signify by nodding; "He nodded his approval" lower and raise the head, as to indicate assent or agreement or confirmation; "The teacher nodded when the student gave the right answer" let the head fall forward through drowsiness; "The old man ...