I think we all fall into the trap of people pleasing; even when it isn't fully conscious to us. We want to be liked, accepted, helpful, whatever and in order to accomplish this, tweak our personal convictions to do so.
This could include speaking a full truth to someone who asks for an honest opinion, but because you don't want to damage the relationship, you only share a half truth, which really is fully a lie.
Or, we tend to say "yes" to things we really don't want to do in order to accomplish the same goal.
