Fragrance salespeople, I just want to be left alone at your store!

I know it's your job to make as many sales as possible, but I'm actually less inclined to buy something if I feel pressured and anxious. Do you guys have any tips to make them back off?

I often say "I'm just trying things on, I'll come to you if I need help", but they keep coming back with the "How are you liking everything?" questions. Last time I just pretended I didn't see/hear her. Honestly please just leave your customers alone if they like to.