Our bridesmaids here (Beijing) also want to give red envelopes. You can refer to your habits on this issue. Just ask the bride about her makeup and clothes. It depends on her arrangement. Generally speaking, the makeup artist on the bride's side will change bridesmaids. As for clothes, if the bride's requirements are not high, just let you wear your own clothes, then you have to prepare it yourself. If the bride says she likes formal dresses and handbags, she should buy them for you.