AGH help!

alright all you fashionistas i need your help, tomorrow i have my brother in laws graduation. what do you wear? do i wear a dress, not a fancy one but like a sweater dress. do i wear slacks with a cardi? do i wear just jeans? im not down with the jeans so dont say that lol 

i need your opinions.

oh ps dont mind the lower caps and the lack of punctuation im currently at work bloggin from my phone and eating my food for dinner.

thanks for your help
nikki