Hi,

Remodeling my kitchen, have part of what used to be an external wall
(before a prev owner built an addition) exposed. It looks like this:

http://freeboundaries.com/stone.jpg

I would like to leave to fix it up and leave it exposed. Can I, who
has not masonry training, do something about making it look more
presentable? (I have a big pile of matching pieces of stone.)

Many thanks in advance,

Aaron