I try to place my cams (especially the non-cell ones) really close to a "beaten" path, whereas I can check them coming or going while primarily coming thru for other reasons.
To minimize the potential "spooking" of deer, another issue is the TIMING of just when you check a cam. For me, one of the best times is early afternoon (like 1pm), as this is a time when there is typically decent air flow (to help scatter & dissipate your human scent), and your sounds will typically be most muffled by other routine sounds (including the wind itself).
Another good time, imo, is at least 45 minutes before dawn, or at least 45 minutes after dusk. This is especially the case if you're walking or driving near that particular cam anyway.