Choosing clothes that are appropriate for your body type is so important.
The bathing suit bottom with the cute little ruched ruffle hides just enough that you know nothing of the horror hiding underneath it.
Same with the skinny jeans, slim tank (and padded bra!), and long open sweater.
Or adding a long necklace or scarf to a plain tee and yoga pants to add some height/
That's just me. You may want to emphasize/de-emphasize something else. Either way, it's all about smoke and mirrors.
What's your magic trick?