The vast majority of ghosts cannot see you. They exist in a different plane of reality and cannot perceive ours any more than we can perceive theirs.

However some ghosts are closer to our plane than most. This can happen for various reasons, usually because they have gotten off track somehow and become lost, and were drawn back this way by strong emotional attachments. Some of these ghosts may be able to “see” you, in a manner of speaking. They do not see in the same way we do, with physical eyes detecting physical light, but they may be able to perceive your subtle aura.

Please don’t worry too much about this. The vast majority of ghosts are not dangerous.