What are you wearing? The verb for wearing clothes is usar: Ela está usando um vestido. — She's wearing a dress.

Portuguese	English
a camisa	shirt
a camiseta	T-shirt
a blusa	top, blouse
a calça	trousers
a calça jeans	jeans
a saia	skirt
o vestido	dress
o sapato	shoe
o tênis	trainers
o chapéu	hat
a bolsa	bag

Two of these are singular where English is plural: a calça is the trousers, and um tênis is a pair of trainers.