I was hanging out with a friend and her friend a while ago, and I noticed my friend’s friend went out of his way to talk to me, was staring a little, etc. but I brushed it off because I was afraid I was being delusional and too narcissistic, and even though I found him attractive I didn’t flirt back. when he left, my friend remarked how he was obviously into me but I still couldn’t believe it. This isn’t the first time I’ve brushed off someone flirting with me because it made me nervous, and I usually feel like, if I flirt, I’m going to disgust the other person somehow. It’s like I’m not confident in being perceived as a sexual person. I’m confident in myself in other areas, but how do I become confident with flirting, both giving and receiving?