Open Instagram and choose the photo you want likes on.
Comment different hashtags. Theses will get you likes. You can also you Tagsforlikes.com for the most popular hashtags.
Choose other photos from your profile and do the same thing. More tags = more likes.
Another way is to go to the explore page.
Search hashtags like "likeforlike" or "followforfollow". Go through and like as many pictures as you can.
Once you do this, sit back and watch the likes roll in.
The creator of this guide has not included tools