I might go on a picnic this weekend
Me too and I always make sure to play some outdoor games when I picnic or some at least other form of entertainment, Its common for me to do this at large picnics. Do you also play and have fun at picnics? 
I think for us it would be romantic picnic. what food should i pack?
Well if your picnic is in the late mornings or midday id suggest bringing breakfasts items like muffins!, but could you can also bring friend chicken and potato salad if its near dinner time.
That sounds like a great i dea
When I usually go on romantic picnics, I bring a picnic basket and a blanket to sit om, But my girlfriend usually  brought along her own.
I might even bring a little wine
Me too, I bring white wine that has been fermenting for years, white wine is a tradition in my family, it has been around for at least 2500 years.