What do y'all think about this?

...maybe I know, but a little confirmation can't hurt anyone! So I met this guy at work, recently. He does not work with me, but our paths cross at work. From the minute I saw him, our eyes locked. I realized he kept staring at me (but I hate jumping to conclusions, so I did not ume anything). Later on he came and asked if I had a piece of number, he would like to leave his number "in case of emergency" which was kinda like ok. So I took it as face value... "in case of emergency". I saw him the next day and he was doing the same staring thing, and he would plant himself directly in front of me and squinted his eyes as he stares. My manager asked how I was doing and he replied, "Oh she's excellent". Then he came to me later on and asked if I still had his number. We then exchanged numbers. (He still has not called), but I have seen him a few more times and the stares has become much more profound. Of course I am not going to call...(should I?)... He is gone now and I won't see him again, unless he calls or if I call him (which I probably won't)... As he left he gave me the longest, most profound stare and a grin... *Oh did I mention he and I were making small talk, when someone came up and interrupt...he waited few then just walked away*