STYLETHREAD -- LET'S TALK SHOP!

Ok I REALLY need yall's help. I'm going to Vegas in a couple of weeks to celebrate my birthday with my boyfriend.  And not only that....I'm meeting the family for the first time!

I have NO idea what to wear. Obviously I want to look super cute for my birthday and going out,  but not look trashy or anything because of his parents.

 Ideas???? For the day and for night?

TIA!!