This commonly occurs on city streets, college campuses/ towns, or parking lots. In the situation of the follower, it becomes necessary to make oneself known before discovered.
Following without the followed knowing becomes exponentially risky/awkward/sketchy as hours grow late, especially when discovered.
1 walk casually
2 walk slowly
3 start a fake cell phone convo to alert presence
4 cough if necessary
5 keep eyes moving/ as to not be caught staring in the case of a quick turnaround
6 act slightly drunk or impaired
7 scuffle feet acouple times
1 walk fast
5 walk as if to not make any noise
6 be caught within shadow range
7 be a known sex offender