“bye” with a little wave
I think it counts. There was context and as mentioned, a hand gesture (this IS Italy after all). Because it’s such a little word and it seems early to us (8 months?) both Paul and I had some doubts but here’s how it happened: We were all sitting at the dining table together; Paul and I eating dinner, Phoebe playing with a new toy since she’d already eaten. But when she dropped it on the floor for the fourth time in a row, I decided not to pick it up again and instead said, “Ok, it’s gone now. Bye.” Phoebe’s response was to look up at me, say “bye” then wave her little hand, opening and closing those doughy fingers. Delighted with herself–and the laughs this whole episode drew from us–she turned her attention to slapping the table, an already established favorite activity, and life returned to normal.