Figure out some literary devices and need help in figuring out what these are. Example, is it a paradox and metaphor. etc.
1) floating rounds of cocktails permeate the garden outside until the air is alive with laughter and chatter
2) Glide in throughout the sea-change of voices and faces and color under the continually changing lights.
3) Conducted themselves according to the rules of behavior linked with amusement parks.
4) ECHOLALIA of the garden
5) Some sensation!