Glancing
Glancing at something can betray a desire for that thing, for example glancing at the door can indicate a desire to leave.
Glancing at a person can indicate a desire to talk with them. It can also indicate a concern for that person's feeling when something is said that might upset them.
Glancing may indicate a desire to gaze at something or someone where it is forbidden to look for a prolonged period.
Glancing sideways at a person with raised eyebrows can be a sign of attraction. Without the raised eyebrow it is more likely to be disapproval.