Sentence:  All week I've found myself doing everything I can to distance myself in the crew's eyes from the bovine herd I'm part of, to somehow unimplicate myself: I eschew cameras and sunglasses and pastel Caribbeanwear; I make a big deal of carrying my own cafeteria tray and am <WSD>effusive</WSD> in my thanks for the slightest service. 
Meaning of the word marked with <WSD> tags:  Gushy; unrestrained, extravagant or excessive (in emotional expression).