In general terms, the upper body tends to be stronger for men whereas the lower body is stronger in women.  It’s a simple fact, and women also tend to carry more fat due to menstruation, pregnancies, and other general parts of being a woman.  However, there are some women who want to correct this imbalance in some ways and strengthen their upper body.  It is natural to have it, but if you want to achieve this, there are options.  Generally speaking, women don’t actually want to bulk up, just tone up. 

So start out by using small weights in a greater number of reps.  This will give you greater toning rather than bulky muscle building associated with larger weights.  In addition, you could well use exercise bands.  Of course, your first plan probably won’t be the best one for your body.  But just go by ear.  If something is working out a little better, stick with that, if you notice that one part of your workout isn’t working so well, then change it.  Just adjust it to the things you can figure out through your own experiences, and incorporate a good personal trainer as well.  They can give you tips you might not otherwise know about.