Tap the “...” in the bottom right corner when creating a post, or the “+” icon when reacting to a post.
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Choose Drawing Markup.
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Navigate to the drawing.
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Choose from the available tools at the bottom of the drawing. You can add clouds, shapes, lines, and arrows as well as use a pencil or highlighter marker. You can also add text to your drawing. Type directly on the drawing, resize and position the text exactly where you want it, and choose what color it appears, if you'd like.
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Note: This markup will not be on the actual drawing but is a snapshot of it that will be included with the post. You can add as many snapshots from as many different drawings as you need.