This includes water bottles that have been refilled but not have been washed out. These can still harbor germs that can be passed through residual salvia.

You should first wet your hands with either warm or cold water. Soap and lather your hands. Lather your hands for a minimum of 20 seconds. A good way to time this is to sing/hum “Happy Birthday. ” Rinse off your hands under clean water. Dry your hands on a clean towel, or air dry them.

To poke a hole in the lid, use a sharp tool (like a knife or fork) and apply pressure to the top of the lid. Be extremely careful when doing this, it is easy to slip and accidentally cut yourself. Do this on a solid surface and always cut away from yourself.

A squeeze bottle may be more efficient than using bottle with a lid with a hole poked in it.

There are many diseases, like mono or even meningitis you can contract by sharing drinks. [4] X Trustworthy Source Centers for Disease Control and Prevention Main public health institute for the US, run by the Dept. of Health and Human Services Go to source At the same time, consider whether or not you really know this person’s health history. A lot of people can be ill and not even know it. For instance, the person may have never had a cold sore, but may in fact be a carrier of the virus (it is estimated that 90% of adults carry the virus). [5] X Trustworthy Source Mayo Clinic Educational website from one of the world’s leading hospitals Go to source

If you are worried about splitting the drink in equal parts, first pour the drink in a measuring cup to measure exactly how much liquid each glass is receiving.

Use straws. This may allow you to isolate your germs to just your straw where your mouth meets the straw. However, there may still be germs from your saliva in the drink.