This is a discussion on Are These Signs Of An INTJ Being Interested? within the INTJ Forum - The Scientists forums, part of the NT's Temperament Forum- The Intellects category; Originally Posted by ponpiri He could. Although I do all of these things with friends, including telling them they're attractive ...
I'm not intj but from what i observed, don't bother to read them. Not all intjs are the same. Some will do the list above because they're so comfortable with the person and regarded them as friends but be very so awkward with their romantic interest.
I think if they like you enough and are serious enough they will ask you / tell you directly
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That all sounds like normal INTJ behavior in platonic friendships. The best way to find out is to ask; that's why someone responded with "probably"; we don't know. They could be signs of interest, but I'm more of the mind that INTJs don't give any signs; we just tell you if we are when we're ready to. We are direct and deliberate so that there are no misunderstandings. Send him this thread from you about him; he should appreciate someone else wanting resolve/to know something/to not have to guess and or ask or rely on what strangers say.
I'm gonna sound like a broken record and/or parrot and say it looks like they see you as a really close friend. But don't despair, INTJ's make pretty good friends! Even if we don't always understand each other
Playful Teasing 
Goofing Around/ Joking [ ]
Doing Little Favors [X]
Inviting To Places/ Activities [ ]
Admitting To Finding You Attractive [ ]
"You & Me" Mentality (e.g. "Smart like you and me", "we're close friends", "we dont talk about superficial things" ) [ ]
Talks About Feelings [ ]
Wants You To Get Deep [X]
Looking Over At What You're Doing [X]
Wants You To Speak More [X]
Touches Your Stuff [ ]
Standing Too Close [ ]
Complimenting Personality [X]
Asks About Your Thoughts Around Relationships [ ]
Intense/ Strong Eye Contact [X]
In Group Conversations, Directs Eye Contact Towards Person Of Interest Despite Them Not Having Initated Or Involved [X]
These are just signs of being friends [ ]
I would have ticked the others if I was already in a relationship, or at least dating the person. but if I'm dating the person, they would know I'm dating them, because I told them so.