just follow steps
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Step 1: You Just Need....
1. Hand Sanitizer
2. Your dirty hand
Step 2: Take On
take 2 drops of sanitizer on palm
Step 3: Rub It!
Rub Your both palms one on another.
Step 4: And Thats It!
Congratulations !! You just killed 99.9% germs on Your dirtfull hand !!