Questions & Answers about Ты можешь подождать в кафе, пока я вернусь.
Ты is the informal singular you, used with friends, family, children, and peers in casual situations.
Вы is used for:
- polite/formal singular (to a stranger, older person, customer, etc.)
- plural you (talking to more than one person)
With Вы, the sentence becomes: Вы можете подождать в кафе, пока я вернусь.
можешь is the 2nd person singular present form of мочь (to be able to / can).
Conjugation (present):
- я могу
- ты можешь
- он/она может
- мы можем
- вы можете
- они могут
In this sentence it’s a friendly can/you may meaning: you are able to / it’s okay for you to wait.