1) Agreed silently 2) Agreed, visibly 3) Assented silently 4) Assented, at an auction 5) Caught a wink 6) Dozed off 7) Erred through oversight 8) Gave assent 9) Gave silent approval 10) Gestured yes 11) Goofed 12) Greeted silently 13) Grew sleepy 14) Indicated assent 15) Let a slip pass 16) Said yes silently 1) Erred 2) Gestured 3) Slept 
• (imp. & p. p.) of Nod • (imp. & p. p.) of Nod