disclaimer: this is an off topic question so please don't mind i will delete it after i get an answer
MY SOME FRIENDS LOGIN their accounts in my android i had their username but not password is there any trick that when the password is enter that saves personally to me
the social media they login is facebook and instagram
Some friends don't mind sharing account access. Building rapport with Open Communication and honesty is the only proper way to save a friends account password.
Some app are connected automatically with some account and saved password with synchronize. Sample using something on website and if this exist on sample FB with the same e-mail, propably automation you van used that. The FB automatic recognize your personalny account and password.