✓ Sync the chorus drop with a smile or a hug
✓ Use a high-quality photo slideshow for the verses
✓ Include a text overlay like 'My forever' or 'My baby'
✓ Use the first 15 seconds for maximum impact
✗ Don't use low-resolution, blurry footage
✗ Don't ignore the beat—the sync is what makes these go viral
✗ Don't use the sound for non-romantic or non-sentimental content