Opposites Attract
Electrically charged objects obey two rules - opposite charges attract, and like charges repel.
Have you noticed how clothes cometimes cling togeather when removed from the dryer?
While the clothes tumble around, electrons are transferred from fabrics that hold their electrons loosely to those that hold their electrons tightly.
Clothes that gain electrons become negatively charged and cling to clothes that have lost electrons and are positively charged.
Clothes that are oppositely charged attract each other and stick togeather.