Dear Student
The three important way
1. By conduction: When an uncharged body has come in contact with other charged body, the flow of charge is charge body to uncharged.
2.Rubbing: rubbing one body with another body, both of them gets charged. One of them get a positive charge and the other acquires a negative charge.
3. By induction: when a charged body has come near uncharged body then it automatically charge.
Regards