Friends, colleagues, school mates, church mates, club mates and the like should be loved by use of PHILADELPHIA love. This is the type of love that is based on a common ground of work or engagement. It's a means towards something and not an end in itself. This love fades off when the common activity or ground is changed. For example, if you're transferred from a certain job to a new station, your love for your former colleagues will fade off systematically and progressively. In this case, out of sight out of mind adage fits perfectly. By focusing on what you do together, you can cause this love to continue.