Am I too flirty?

Recently one of my close friends accused me of flirting with all of these men at my job, which took me by surprise. I do work mostly around guys. I'm an incredibly social person, and I absolutely love meeting new people. Whenever a new person starts at my job, I immediately get to know them and befriend them. As I said, I like to meet new people and I also of course like to make them feel comfortable. However, my friend said I am also overly-friendly with customers, even when speaking to them on the phone. That I laugh and smile too much, and hold too much eye contact. This just rubbed me the wrong way, because I cringe when thinking of the fact that my male friends could think I blatantly flirt with them all the time. I guess my question is, if someone talked to you in this sort of manner that I do, would you think you were being flirted with?
Am I too flirty?
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