We started doing it late last year but the only one I've really done consistently is milk. Today, that consistency paid off!
I had Emma on the changing table after her nap. After I finished fastening her diaper, I asked her if she wanted some milk (I didn't sign it when I asked). To my amazement, she made the sign for milk! I praised her and gave her big smiles, then asked her if she wanted milk again, and she made the sign again!
I picked her up and gave her more praise and big hugs. I was so excited! I really want to teach her more signs and I need to be more mindful of opportunities to do so.
My little smarty pants with her milk!