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The other methor as mentioned would be a drift alignment, if you are using a guide camera there are easy tools for it in PDH2. You need to calibrate PHD2 (Which will probably throw a warning about poor calculated angles) and then if you work it out you can use the drift alignment routing that is built in to it to work out which direction to move the mount.
If you drift align, do the azimuth first (Pointed on the equator nearest the zenith) as any azimuth error will show up mixed in with altitude error if you try to do the altitude first where if you are on the equator and with the mount almost wanting to do a meridian flip (For a GEM) there will be almost no altitude error mixed in with the azimuth.
To go back to the earlier point, if PDH2 is calibrated then you can see if the scope is moving north or south of the selected star and work out which way to move the mount from there. Just remember always to be pointed either east of or west of the zenith or the direction you need to move will be reversed.
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