Take it from the selfie master: "It's all about angles," says Instagram-phile Chrissy Teigen in this exclusive behind-the-scenes video. The Sports Illustrated swimsuit model, between takes at an Us Weekly style issue photo shoot, reveals the secret to photographing flattering self-portraits -- and it comes down to camera placement. "[Shoot] up and down," she says.

Second to angles in importance? Choosing the right filter. "The filter is always going to save you in the end," she shares. "So don't give up on a photo, because once you put in a filter you might fall in love it."

The third ingredient? Do something "unexpected and funny," advises shutterbug Teigen, who's engaged to John Legend. In the video, she can be seen hamming it up for the camera by sticking out her tongue, grabbing her breasts, and frolicking in a bathtub.

To see the images from the shoot, check out this week's style issue, on stands now. Teigen shows off 31 fall fashion finds for an entire month's worth of outfits.