To reach this route, hike into the [Gallery Canyon] and make your way up to the [Menses Prow]. Hike left (west) past the [California Ethics Pinnacle] approximately 100 yards. There will be a 15 foot ledge on the south facing wall. Scramble onto this ledge. [Liquid Affair] is the 3rd route from the right.
This is a great route for your first (or second ...) onsight, because the crux is early, brief, and very straightforward. Crank through thin pockets and edges past a couple bolts. Easier terrain lies above. Most people head slightly right to "[Love Pump's]" anchors. An alternative to this is to trend left and upwards to the anchors atop "[Thirteen Engines]".
If I remember correctly the crux of Thirteen Engines is above the last bolt of this line. Thus, deviating left is certainly a lot harder than going right.