but in time it will be not such a problem.

You can try special nursing clothes, which have a slit that can be very discreet. I had a couple of dresses like that, which were helpful because you otherwise can't nurse in a dress.

I think the best combination was a knit shirt with a (jersey) knit cotton cardigan. Stretchy, gives some options for artful draping.

Choose a seat for maximum modesty. A back corner in an audience situation. A corner table, maybe with your back to the room in a restaurant. Being nestled among loved ones helps too.

You end up with the child covering your breast, so the end effect is that many people just think you're holding her, and don't realize that she's nursing.