Which ascendant would best suite these personality traits?

-Appears reserved/quiet at first but looks like an outgoing, well liked, sporty kind of person

-Changes behavior the next time and is the total opposite (friendly, giddy)

-Shows better through actions then words (harder time to make convo/speak)

-Tries to initiate conversation

-Tries to be polite regarding innapropriate material

-Has a gentle demeanor

-Soft, friendly voice

Sun: libra

Moon: pisces/aries

Mercury: libra

Venus: libra

Mars: scorpio

Taurus, Cancer, Libra rising.

Sounds as if it could be a dual sign.

I'd go with Libra.