Showing Off
If endeavours which should be done merely for God are done for others , then this would mean that they have taken the place of God. For example, Salah which should be offered only for God, there should be no element of show-off in it. Pleasing parents to please God is also a good deed ( or making them happy ), however pleasing parents to show-off to your neighours and not to please God would be considered as showing-off .