Eyes    
Making your eyes BIG is the main key to getting a slimmer looking face. Apply false eyelashes on the outer corners of your eyes or apply mascara on your upper lashes. Use the right make-up to add some depth to your eyes. Dark hues like plum and navy can contour and hide puffiness.

Eyebrows                           
Sarse and messy eyebrows are unattractive. Groom your eyebrows and make it more prominent besides taking the focus off the perimeter.                                                                                              

Lips
Plump up your lower lip. Small lips makes your face looks wider and bigger. The best way to beef up your mouth is to dab a shimmery gloss in the middle of your lower lip (on top of a lip-tone lipstick or gloss). Whereas, drawing ur mouth with liner will make your lips looks smaller. So it’s advisable to avoid doing that.   
 

Cheekbones  

Bring out the angles in your face. Just highlight the “high points” of your face (cheek and brow bones) using iridescent powder. Use your regular blush and eye colors in the areas that recede, like the hollows of your cheeks and the creases of your eyes, to exaggerate the effects. 

There you have all the tips. Do not go to the extreme by putting on a thick makeup just to get a slimmer face. There’s always a thing called natural beauty. You can be adorably beautiful too even if your face is chubby.