How do we get influenced?

Have you ever noticed a lot of Christians don't act like they are Christians at all? When you see them on Sunday in church they have on their church face. If you see them on a weekday they have on their "other" face.
This is not unusual. If we look in the mirror at ourselves most of us are no different. We too act different in different situations. Ever look at a person that thinks they are a Harley biker? They dress for the occasion (even if we smile at them). Runners dress for the occasion. Motocross people act and dress a certain way. Christians (at least on Sunday) dress and act a certain way. Everyone does it to a degree.

So what is my point? Everyone acts or plays their part. If you do it long enough you start actually thinking this is who you are.
The longer we act a certain way, the more we become that way. This is because we are influenced by what we do. So if you want to become a better Christian one thing you can do is spend time with other Christians.