Invite your partner to go for a walk. Get a back pack and pack the following items: A picnic blanket, a selection of fruit in small containers eg. strawberries, grapes, watermelon and kiwi fruit. Some cheese and crackers. Some sandwiches. A small tin of caviar. A half bottle of champagne and two plastic champagne glasses. If your partner asks what's in the backpack, just say a jacket and some lunch.
When you find a romantic spot, ask if she would like to stop for a bite to eat. Open your pack and remove the items one by one to set up your picnic. The last item you remove should be the glasses and champagne.