Religion does not mean Christian. Anyone can be religious, but only those who know Jesus as their personal savior can be Christian.
A Christian will not practice those things listed in Galatians 5:19-21
Gal 5:19 Now the works of the flesh are evident: sexual immorality, impurity, sensuality,
Gal 5:20 idolatry, sorcery, enmity, strife, jealousy, fits of anger, rivalries, dissensions, divisions,
Gal 5:21 envy, drunkenness, orgies, and things like these. I warn you, as I warned you before, that those who do such things will not inherit the kingdom of God.
If you do these things you can call yourself religious, but you are in no way saved, and thus no way a Christian.