I'm 3 for 3 with this very simple line and it opens up the door to be metaphorically sexual right off the bat:

"I just browsed you. Did you feel the tingle?"

Just wanted to share.

(edit) The three responses I received were:

"I did... And I rather enjoyed it!"

"Well only because I'm cool as shit and not crazy" (reference to my profile)

"I did and I still do!"