Welcome to our forum.
DON'T say "no thanks, I'm just looking" and THEN approach them LATER about buying.
don't interrupt them. Listening is a sign of respect. You can establish much better repore and learn more about the "attitude" of someone by LISTENING to them.
As a side note:I am not telling the moderators how to do their job, but being a mod on another site, I find it useful when great posts like this are stickied. That way they are available up front and not lost in the shuffle. When I first found this forum I went through all 300+ pages and noticed that a lot of information gets lost by not being available easily up front and the same questions get asked over and over again. I realize you have the "dead horse" section, but it is not intuitive to look there for commonly asked questions.
Why not?
This goes both ways.