I, you, etc. for one

for one

Used after a name or personal pronoun to emphasize something about oneself or someone. The phrase is more formally set apart by commas on either side, but these are often omitted in everyday writing. I can tell you that I for one am really happy about the changes to the tax law they've introduced. A: "Who is coming to the movie later?" B: "Mary, for one, but I haven't heard back from anyone else."
See also: one

I, you, etc. for ˈone

used to emphasize that a particular person does something and that you believe other people do too: It’s getting late and I, for one, must be going.‘Who says stamp collecting is strange?’ ‘Well, Jack, for one, and I’m pretty sure Jane does too.’
See also: one