1. Choose your bra carefully
Make sure you buy a good quality one.
2. Have specially designed bras
You know, some specially designed bras are the number one way to make your boobs look bigger. For example, push ups. If you want to have a more natural look than you can have jelly filled ones.
3. Do massage
If you want to have healthy and big boobs, do massage. Make sure that you are doing it from down to up. It will quicken the blood flow.