I like to ignore salespeople and enjoy it.
Seriously? What about salespeople makes you ignore them?
They can be annoying if you don't end up buying the products.
Salespeople can be annoying but it is not their fault. Sometimes they are told to behave a certain way in order to make more sales by the company they work for. However they are still people and should be treated as such, you could just greet them and say you are just looking.
I dunno, I guess it kind of feels good to just ignore them.
You can ignore the salesperson, but you shouldn't treat them in any negative way. Just telling them that you're not interested would be a lot nicer than ignoring them, though.