A few simple tricks can help a lot when you only have a phone or basic compact camera:

• Use fill flash outdoors: setting flash to “always on” can help brighten faces and reduce harsh shadows in sunny conditions.
• Soften built-in flash: hold a thin white receipt or business card over the flash to diffuse it and reduce the harsh “rabbit in the headlights” look. Thicker paper cuts more light; thinner paper cuts less.
• Bounce flash if possible: a white card can sometimes redirect flash toward a ceiling for softer light, though this depends on the camera and room.
• Keep the diffuser close enough to cover the flash fully: if it is too far away, direct light may spill around it and still hit the subject.
• Shoot more frames with the camera you have: if your phone is your default backup camera, taking several shots increases the odds of getting a keeper.

These are simple, improvised ways to improve snapshots when you are without your normal gear.