Arrow sticker - highlighter stickers for iMessage

I have no idea how to place the stickers can anyone help me

A great way to improve communication through the iMessage App. Very easy to use, just press and hold to drag a sticker to the message you’ll like to annotate over and let go when the bubble is selected. Same with every sticker available for iMessages. This app should be a standard with all iPhones in my honest opinion.

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So I purchased your app and when you click open it just opens my messages. Held down a message to add reaction they are not there. How do I enable them. . . Your app is not even showing in my iPhone settings. Please help! Update so it shows as a picture. . . Lame how is that a reaction? Not at all like the picture. It sends just like an image below the text.

having these is like having extra reactions to texts. i loveeee using them especially when i get a long text and i want to point out a bunch of things in it. but hey, read the reviews people are leaving you and fix the oops sticker! 😬

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I can't seem to drag and drop these where I want them. I can only post them, which means the down arrow is kinda useless. I can only comment on my own texts since the arrow is downward facing.