I'm only looking
I'm just/only looking
I'm just browsing, rather than looking for something in particular, as in a store. Often used to dissuade employees from helping (or pestering) one. A: "Can I help you?" B: "Oh, I'm just looking, thanks."
I'm only looking.and I'm just looking.
I am not a buyer, I am only examining your merchandise. (A phrase said to a shopkeeper or clerk who asks May I help you?) Clerk: May I help you? Mary: No, thanks. I'm only looking. Clerk: May I help you? Jane: I'm just looking, thank you.
See also: look