- Do not "strait arm" it: this telegraphs what you are doing.
- Hold it closer to your body, and spray: this gives you more control. Use your "strong hand". I prefer to use the thumb to fire the canister style pepper-sprays.
- Direct pepper spray into eyes as you spray: fire, then direct stream into face and sweep across eyes and nose.
- If you can, move to the side: the attacker may try to rush you at the last position that he saw before his eyes closed.
- Do a quick look around, he may have friends: repeat the above with the other attackers. Remember: spray and move.
- Spray attacker again if needed: some people need more than one hit to go down.
- Escape; your job is not to detain or punish the attacker, run.