scrawny	unattractively thin and bony-looking (kościsty, wychudły)
lanky	very tall and thin; and usually moving awkwardly
gangling / gangly	with long, thin arms and legs and rather awkward movements; often used of men and boys
portly	with fat stomach and chest, often used humorously about older men (korpulentny, tęgi)
stout	with a quite fat, solid body, used of men and women
corpulent	fat (formal, literary word)
double chin	fat around the chin
unkempt	untidy, scruffy (rozczochrany, zaniedbany)
never a hair out of place	about hair that is always neat and tidy
swarthy	dark-coloured, used about skin (śniady, smagły)
sallow	yellowish and unhealthy looking (ziemisty, blady, żółtawy)
to look haggard	when face shows tiredness and age, with the skin hanging in folds (wychudły, zmizerniały)
to pout	to position one's lips in a sexually attractive way (wydymać wargi)
to pout	to position one's lips in a look of annoyance (dąsać się)
to grimace	to make an expression of pain or strong dislike
to scowl at sb	to give a bad-tempred, angry look (popatrzeć gniewnie na kogoś)
to leer at sb	to look in unpleasant, sexually interested way (patrzeć lubieżnie)
to shrugg one's shoulders	to lift one's shoulders up and down to show one didn't know or couldn't answer
to fold ones arms	skrzyżować ręce
to bite one's nails	obgryzać paznokcie
to pick one's nose	dłubac w nosie
to clench one's fist	zaciskać pięść
to tap one's fingers	uderzać palcami (np. o stół)
gait	the way of walking(chód)
to scratch one's head	zachodzić w głowę
to raise one's eyebrows	unosić brwi
to cross one's legs	krzyżowac nogi