Facial expressions are a common indicator that a co-worker likes you.
If you co-worker can't stop smiling or giggling while speaking to you, gives you direct eye contact and looks disappointed when the encounter comes to an end, chances are they're nurturing an office crush. According to Made-Man. com, women tend to lick or bite their lips while speaking to someone they like.
A person's body often tells what their mouth tries to conceal.
You can tell if a person at the office likes you if his head always turns to watch you walk by. Another indicator is when you happen to glance in his direction, you notice him staring, or pretending not to stare in your direction. If she sits near you, she might cross her legs toward you. The person might come up with reasons to come to your desk and use your computer or phone, strictly for the purposes of leaning over and (hopefully) touching you.
The Bump Into
When someone at your office likes you, he invariably finds ways to bump into you.
This could be in the break room, at the copy machine or at the water cooler. He will find excuses to be wherever you happen to be at the same time. He might start timing his arrival or departure from work to coincide with yours, and find a way to take breaks at the same time. At first it might seem like a happy coincidence, but as time goes on, it may develop into an unspoken date.
To be near you and seem likable, your office crush might find reasons to help you with every task, especially if you're the new person in the office.
The person may even offer to meet you after work for coffee to help familiarize you with the ins and outs of your new job. At work she will gravitate to your desk to help you learn your computer system, and might offer to give you a tour of the premises. If you have a big project coming up, she'll offer her assistance whether you need it or not.
Co-workers who like you will want to know if you're available for an office romance.
They might ask you about your relationship status. If you are in a relationship, be prepared for them to keep asking about your spouse to determine whether or not you're satisfied at home.