Juz like dating a boyfriend in the youth, if you have known him/her for only a short while, it's better not to put much of your passion to the relationship not until a few motnhs / or a year afterewards.
No, don't do that!
If you are too friendly with her at the beginning, it will be difficult to handle later when she does something wrong or bad, she will let you see black face if you scold her! You can be kind to her, but not her friend!!