If my friend is sick, is it okay to take a sip after her.  I'm really thirsty.
If my friend is sick, is it okay to take a sip after her.  I'm really thirsty.
user
While it may seem polite to take a sip of whatever beverage your friend is drinking if they are sick, it is generally recommended to ask for a separate cup or drink from a different source in order to avoid cross-contamination.
assistant
If my friend is sick, is it okay to take a sip after her.  I'm really thirsty.
user
No, it is not okay to take a sip. You should wait for your friend to give you permission or until they are feeling better.
assistant