Like exotic food? Get the very yummy plate for only Euro 10 at the Bangladesh exhibit in the rice area (though you'll have to find somewhere else to sit), and...
...be sure not to miss Estonia's exhibit...my personal favorite. Swing, and find out how much energy you generated. Spin a grinding wheel to spin the info on the screens. Dash around on a stationary bike with the video road in front of you. Slip into a poplar (?) forest. Put your aching feet up for a few minutes while you lounge on a gigantic cushion surrounded by honey colored wood and plants. One of the best integrations of the country's culture, the use of space and technology and Expo's themes, in my opinion.
My second favorite? Poland. Why? Can't tell you. Don't want to ruin the surprise.
Unsuccessful exhibits? Of course there are, but I'm not going to share my list of them with you...don't want to influence you, unduly. My yardstick? See the closing comment about Estonia, above.
Hot and tired in mid-afternoon? Plunk yourself down on a cushion in the shade under Turkey's gazebo. You can even get some baclava (though it's pricey, at Euro 3).
Want something for the kids? There's a Chicco and a Kinder area, as well as video games and buttons to push and levers to pull scattered throughout the exhibits.
Mobility problems? You can get an electric cart.
What else can I tell you without ruining any surprises?
It was lovely to leave troubles behind (we all have them), and slip into the wonder of childhood, even if just for a long, exhausting, but satisfying day. Even enjoyed the "Tree of Life" light show, but be sure you get there early enough to get a good seat. The seats balance on a conical point...interesting experience, and perhaps purposeful to help us remember the precarious nature of our environment and the fragility of life. Or maybe they were just big red plastic pointy chairs.
The day passed much more quickly than I had expected. And I was there from morn to night.
Thinking about going after 7 PM to spend only Euro 5 to get in? Good deal. Lots to see from the main streets, and there are restaurants and bars open, but many of the exhibits are closed. Forewarned is forearmed.
(My photo of the upstairs area of the Estonia pavilion, snapped on Friday, June 5, 2015)