DATE TOMORROW! What do I wear?

Im 16M and shes 14F. I love in the Southern Hemisphere and its going to be a nice hot day. We are going to a market around midday for lunch and to do some activities, what do you guys think I should wear? It will be around 3-5 hours long.

Im 16M and shes 14F. I love in the Southern Hemisphere and its going to be a nice hot day. We are going to a market around midday for lunch and to do some activities, what do you guys think I should wear? It will be around 3-5 hours long.