The feeling of thinking you know someone and getting their attention when in fact it is NOT the intended person you thought you knew.
I tried to get my uncle's attention and it turns out it wasn't him and he just starred right at me - The feeling that you get when this occurs is called innertingle.
A topic, subject or person which is so Interesting to you that it/they overwhelmingly encompass your entire being, even your innermost thoughts, dreams and desires to the point that they literally become an obsession.
GENERAL: Michelle is the most Inneresting person that I have EVER met that I can't stop thinking, wondering or even dreaming about her.
-OR-
SPECIFIC: John Lennon's songwriting during The Summer of Love (1967) has got me so Innerested in figuring out ALL of song that he wrote during that period and reading EVERYTHING that I could get my hands on about it all. I EVEN find myself dreaming about his music, it's so wonderful. I think I:m obsessed.