The people who practice capoeira are called capoeiristas. When the capoeiristas face-off, they start by doing the Ginga, which is a simple swaying move. As the music plays, the capoeiristas perform moves like cartwheels and handstands. Using the beat of the music, they roll, kick, and jump with grace and control. Although capoeiristas move like dancers or acrobats, their moves simulate fighting. Capoeiristas gracefully "attack" each other and "defend" themselves without actually touching each other's bodies. They may swing a leg inches from a partner's chest, but there is no physical contact. What is the meaning of simulate as used in the text?