Often they happen in abbreviated and subtle variations, so watch out.
"If you want to deliver a message without speaking you would hold someone's eyes," says Hemmings.
"The danger is it makes you look bonkers if you hold it too long. If you are attracted to her you should subconsciously be giving off the appropriate signals.
Are they pointed towards you, even if she is not looking at you? If she seems to laugh a bit harder, longer and almost too frequently.
This can be a sign of interest, again sometimes this can be coincidental too – When you touch her, if she responds by touching you back. The giggles are a sign of piqued emotional interest so she is seemingly at your whim.
1) Anime Eyes – A woman will holding gaze with you a little bit longer than normally, this is true for before you approach and during conversation with her.