There are some spam issues in the comments, so I had to disable comment editing for a short time. It'll be back once the spam bots are gone. FYI... they leave a comment with "great" and then edit in the spam stuff later, to get around the filter.
(Adjust some settings because they have slightly changed. NOT for the initial adjusting.)
2.
to stalk someone
("jemandem nachstellen" - sounds a bit less severe than stalking, but it's definitely creepy and is more than just doing some "research" about a person online. Not for one particular instance of "following". The verb "stalken" is more common, overall.)
3.
to reenact, to reconstruct
(In the sense of recreating a scene that took place. You "re-put" it.)