Do not forget that Astral Space is another geographical plane. There are things and people there, roaming and rushing around, that have nothing to do with the runners or whatever they are running. When a magician projects astrally, there are other people and spirits around, and they don't have to be aggressive or predatory. Such as:
- A magician from another runner team, just scouting out the same facility for a run next week
- Same as above, but at an astrally protected facility. This magician is lost, keeps slamming into glow moss/ivy, is about to hit the deadly hour and is willing to ask for help getting out.
- Just as the party's magician is about to cross the property line unto Corp territory, up janders and old buddy flashing through the astral. This old buddy now wants to stop and gab and catch up.
- A watcher spirit, just hanging around. " HI! How are you? My master calls me Jobi. What's your name? Want to play?" and so on, and so on.
- A dragon, also projecting. It should fly by, super fast, and scare them a little.
Really want to freak your players out? Next time they project, have a big, fat, Force 12+ free spirit waiting there. Just watching them. A roiling mass of air, with firey red eyes. Those eyes are BURNING into the mages. The spirit doesn't talk, it doesn't respond in any way, it just follows your mages. STARING at them. With those BURNING RED EYES. Doesn't matter where they go; into the Corp facility/back home/ to another plane, the spirit is following them. STARING AT them...