Answer:
Greek democracy created at Athens was direct, rather than representative: any adult male citizen over the age of 20 could take part, and it was a duty to do so. The officials of the democracy were in part elected by the Assembly and in large part chosen by lottery in a process called sortition.
When a new law was proposed, all the citizens of Athens had the opportunity to vote on it. To vote, citizens had to attend the assembly on the day the vote took place. This form of government is called direct democracy.