concealing oneself (verb) lurk: hide; move stealthily
Sinonime: act,
affect, assume, bluff*, counterfeit,
devise, dissemble, dissimulate, do a bit,
fabricate, fake,
forge, four-flush, give appearance of,
imagine,
imitate,
invent, make show of, phony up,
play, play possum, put on, put on act, put up a front, sham*, simulate, stonewall
Antonime: be true