[Nfb-krafters-korner] swatch gauge help

[knitangelpm]

for those that knit, I get the idea of making a swatch Square of about 4 
inches.
 now I need to know, how do I count my stitches per inch?
 I am making a shrug for myself.
 so far I have made 2 s watches I am Not sure I am measuring lright. So I 
need some exclamation on how this is. done

 thank you in advance and have a blessed evening .