Most Helpful Guy
No they make eye contact to anybody, doesn't mean that they like you if they do look, but it can be a possibility
depends on the look
Most Helpful Girl
There's many reasons why people would make eye contact. The human is a social being, we are made to cooperate and communicate with each other to gain our goals. We care about others and share some bond even with complete strangers.
This is possible thanks to "mirror neurons" in our brain. Basically, these cells become active in our brain when we see or hear an action that's happening to someone else. It enables us to feel like we're doing it or feeling it ourselves.
For Example, if you see someone get hit hard in the face, you may also recoil or touch your face as if you were hit. Of course you wouldn't feel the physical impact of the hit, but you might still feel uncomfortable and tense.
These mirror neurons gives us the ability of feeling empathy towards each other and understand how others feel only by the expression of their face or their posture. It's especially visible through the eyes.
It's quite amazing to see that we can relate to and distinguish emotions from one single gaze.