Use Certain Launch Verbiage

First, you need to make use of this launch verbiage (or anything similar) on the contest posts:

Per Instagram principles, this advertising is within not a way sponsored, administered, or involving Instagram, Inc. By entering, entrants concur that they truly are 13 plus years, launch Instagram of duty, and agree to Instagram’s Terms of good use.

You will get the terms for Instagram contests here.

Don’t Ask people to Tag individuals in pictures They’re Not in

Second, you can’t ask people to tag by themselves or other people in a picture by which they don’t look. And also you can’t label folks in a picture by which they don’t look. But, you’ll label all of them in a opinion so saying, “Tag a friend below” is completely fine. They simply can’t be literally tagged within the picture or video itself.