I have been told that when a 'spirit/guide/someone' is trying to enter your aura or 'touch you' in some way; that you will feel it by them penetrating your aura.  I have experienced chills that are not 'cold' shivering.  But, along certain parts of my body for periods of time in warm rooms and no drafts.  Could anyone enlighten me?  I now acknowledge the presence...just unknown if I should be saying hello to whoever/unknown...if this is a real phenomena.  

Anyone?

When that happens to me I ask them to leave.

Angels talk to you also FHO...
How do you feel, safe and cosy~?
If it's a nice feeling talk to them...
They talk to us all the time..
He maybe giving you a hug..  

IF you know the presence can be trusted, open to it.  If you do NOT trust the presence, dismiss it.  Spirit impressions come in many ways - even the physical - with shivers of acknowledgement.  Many psychic/mediums have felt those confirmations of their own words.

IDK what type of presence it is.  I do not feel threatened, so, I assume it is not bad.  It happens to me maybe every month or so.  Sometimes a couple times in the same evening or only once.  It always affects my left side and has now spread from my left side/behind my thigh to also include my upper back.  It starts out small and spreads to encompass this area that I speak of.  

This is not an occurence that has happened all of my life, it has started only in the past year; when I have begun to acknowledge certain experiences or want to learn different things.

Anyone have any thoughts on communication - if I do not feel threatened?  Or is it more of them letting me know that they are here?

Thanks for the responses so far.