There's a yellow "button" on one leg. You push it to the side to release the latch and fold the legs. It's a PITA to fold for most of us. If you google "wobbly table" here, you'll get some threads on dealing with the wobblyness.
The table is my biggest pet peeve of FR.
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10