It means that someone is thinking about you...
By hugging you mean embracing? It would require someone to be conscious to embrace or at least aware of it.
Tree-hugging hippie
it could mean that you slightly....got a erection but other than that no.
he loves you more than you think
When a woman holds someone tight and she is hugging tightly and if they are of the opposite sex she either loves them dearly or loves them as a friend. On some occasions when someone she cares for is having a terrible time in their lives she may well hug them tightly to make them feel more secure and a silent message to them that she cares and is there for them. Some people do not like to be hugged, but in this world such as it is the human touch of caring by hugging or putting an arm around someone who is sad or simply needs to know in this robotic world that humans still care even those that do not feel comfortable with hugging can become use to it. It is important to reach out and show emotions by hugging; a pat on the back or an arm around a person's shoulder to either express joy re good news or comfort when someone is is in mental pain. It humanizes us.
When your crotch tingles, that means your turned on it also can mean you have a infection
hugging me
If it is directed towards you then chances are he is interested in doing so with you possibly or is seeing how you feel about those things.
it means you have a very imaginative imagination.
If your left ear tingles all the time, you may have a pinched nerve in your neck. If there is a lump, bleeding, or discoloration of your ear, get it checked by a doctor.
nothing really, just means u like it! it happens to me :)