If you want to make your waist look smaller in an A-line dress without using tape or belts, there are a few styling tips you can try:

1. Choose the right size: Make sure you’re wearing the correct size of the A-line dress. Wearing a dress that is too tight or too loose can affect the overall appearance of your waistline. Opt for a size that fits well and flatters your figure.
2. Define your waistline with strategic styling: Look for A-line dresses that have a defined waistline or create the illusion of one. Dresses with details like darts, pleats, or a cinched waist can visually enhance your waist and make it look smaller.