Is it working

Hi, I know this must sound somewhat silly considering that I’ve been showing words for all of six days, but how do I know if it’s even working. I know that testing is a no-no, so what are we left with here? My daughter doesn’t seem too interested in the cards, mostly what interests her is how to get them away from me. She is 19 months old now and very persistent. Anyway, I’m showing her 25 words as many times a day as she let’s me, 4-5 but I haven’t seen any sign of recognition, even with simple words like mama. Any ideas?
Thanks

She might start showing you. My son would start clapping or waving when he saw the words clap and wave, and that was after a few days. Don’t stress about it, though. She’ll probably surprise you when you least expect it!