How do you know when a guy is checking you out?

Answer 1

There are a number of ways that you can use to know if a guy stalks you. For instance, he keeps sending so many messages and pokes on social networks while obsessing over even small things about you.

Answer 2

If you notice him making prolonged eye contact, smiling, or trying to impress you with conversation or gestures, he may be checking you out. Other signs can include him subtly adjusting his appearance or body language when he's around you.

Answer 3

oh you will know, watch the eyes