Ollie links arms with a girl, but in close up he's twiddling his fingers.
Stan's sailor scarf ties hang over his chest but keep changing in length, most notably in the soda fountain sequence.
When they first see the two women, Ollie tilts his hat to the side. In the next shot, his hat is moved back and he tilts it again.
While in the rowboat, the boys move their oars from their right sides to their left sides and start rowing in a circle counter-clockwise. The scene cuts away and back quickly. Now the oars are back on their right sides and the boat is moving in a clockwise direction.
In the opening park scene, ukulele music wafts in and out between shots.