7. They play with objects they have nearby.
Again, be mindful of their body language. If they feel nervous, they will play with their hair or their jewelry, or even their nails. This can be a sign of attraction too, and you can easily notice them playing with their buttons or zippers on their jacket, for instance.
8. They copy your behavior.
Did you put your elbows on the table and notice that your crush followed suit and did the same movement just one minute later? Then you might start flirting soon. It’s been scientifically proven that people copy the people they like, whether it be through gestures, certain posture, words, or even preferences in food or music.