Hanging things with plaster walls

https://thecraftsmanblog.com/how-to-hang-things-on-plaster-walls/

Use 3M Command hooks.

Screws (and screws with masonry anchors for heavy items) are your best choice for hanging things on plaster walls.

This talks about using adhesive strips and drilling holes. Hope it helps.

http://m.wikihow.com/Hang-Pictures-on-Plaster-Walls

The issue with a plaster-lathe wall is that you can't always hit the lathe, and vibrations may well crack the plaster. I would recommend drilling a small pilot hole no mater what method you use, but then ask your hardware store manager for recommendations. He'll likely steer you to wall anchors (you drill a hole, put in a plastic or metal "tube" that anchors the screw you put in) or molly bolts, which go into the wall, then you tighten them up and the tube flattens out to grab the back of the wall. Drilling the pilot hole where you want the fastener will give you an idea of whether you are hitting a stud (you can use an ordinary nail) or whether you will want an anchor or molly fastener. Note on the molly and anchor methods: You will have to patch and cover them if you need to move the picture later, because you can not oull them out without leaving a giant hole, so be prepared for that.

A sewing machine needle works very well and will hold up to 25 lbs. Hammer in at an angle up to the start of the thickened part of the needle very carefully so you don't snap the needle in half. It will not crack your plaster. When you want to take it out just hammer down on it and it will snap off. You can fill in the hole in the plaster with non gel toothpaste.

I've heard if you put a piece of tape where you want the nail it will keep cracks from starting or spreading.

predrill, then gently tap nail in.

I have also heard you should use a piece of tape where you are putting in the nail.