When at the WTC Path station, follow the signs for the E train station. One of the fastest way to get there is this,

1. Exit the Path turnstiles.
2. Walk to the center of the mall where the Apple & John V stores are.
3. Turn left and go up the escalators one level.
4. On the upper level you will see a Walgreens and a Starbucks store. Turn right at the Starbucks and walk through the glass doors.
5. Now you will be at the E train platform, Turn left and follow the signs for the AC 23.
6. Walk north though the mezzanine hallway until you see a row of turnstiles for the A&C platforms.
7. On the left of those turnstiles you will see turnstiles that will directly to the 2/3 Park Place platforms. Also there is a globe artwork, around where the 2/3 turnstiles are.

It maybe better or simpler if you use the 1 train WTC station and transfer to the 2/3 at the Chambers St 1-2-3. The WTC 1 train station is directly above the Path station. At the WTC Path station, exit the turnstiles look left where the Path fare machine are, directly above you see a big 1 sign. That's the entrance to the 1 train platforms. Use the 1 train to transfer to the 2&3.