I need help

All 你 need to wear is a large 衬衫 that covers your panties. Thats it :P
....By that I mean 你 can wear anything and it wouldn't matter much ;P Wear what feels comfortable.

it might be hard and difficult,

Here's your solution.

Just dress casually. Some jeans and a red 或者 粉, 粉色 shirt. Don't stress over it. If you're calm, you'll have a good time.

One thing 你 don't wanna do is dress half naked.
Don't have 你 boobs all out and crap.
Wear what ever is comfortable but classy, ya know.

wear a 最佳, 返回页首 hat, monocle, cane, just kidding just kidding

wear whatever 你 feel comfortable in, don't stress over it, if 你 wear something uncomfortable you'll be too busy trying to get comfortable that 你 won't be able to talk to him! If 你 want some real ideas maybe ask some other people that are going what they're wearing?