1. The station needs to be placed at a super-high traffic location - shopping malls, sports arenas (indoors), concert venues (indoors), as well as airports/train stations (indoors).
2. The station needs to be seen by most of the passers-by, so it is recommended to place them near the entrance or near the highest-traffic spots of the location (e.g. highest-traffic store of the mall).
3. Ideally, you would tell the security about the existence of the station, as they usually get requests about where a customer can find a charging spot.