Instagram Contests is the most fun type of contest ever. All the rules are pretty simple and easy to follow. You need to ensure that your account is not private and set it to Public, so your action can be seen publicly (otherwise, the organizer of the giveaway would not know you are in). Mostly, all the Instagram activity giveaway requires you to repost the post on your feed or story and mention the organizer. Sometimes you need to comment on their comment section about how eager you are to win the prize and tag a certain number of your friends. Check out the rules to see if there are additional requirements about the post and how the select winner. Then make sure you follow that to maximize your chances.