Be open and don't fake it.
Learn to be faithful and truthful to others. This can also be called transparency. If you lie, sometimes it requires another lie to cover up for the previous lie, but if you tell the truth it is more simple even though if it is difficult at that moment it Wil still be simple. Learn to be open and transparent people will truth you more.
That's right
Don't pretend to be what you're not.
Yes you are right. Intergrity is very important.