I am going to take neighborhood street event photo in the evening. I tried to add a white card on the flash head to bounce the light but the light was too hard. I found some photographers taking street event photo in the evening using on camera external Speedlight (SB800) with original white color plastic diffuser on. They had the Speedlight head 45 degree pointing to the open sky while firing. There was either no ceiling or other reflectors to bounce back the flash light. Does it really work ? or it is better than using a bigger diffuser on flash but directly pointing the flash to the subject ? Suggestions are appreciated.