Is He [Scorpio Guy] Interested In Me [Sag Girl]?

If he's a Scorpio I bet you'd know if he's interested in you coz he'll pursue you intensely and will never take no for an answer. Just show him you're interested (but not too interested) then wait for him to ask you out. If he doesn't, then either your signals are wrong, or he's just not that into you (or he's just playing, as unevolved scorpios often do).