Guy from work asked me out for coffee and a walk. Is this a romantic date or could it be as friends?

We work together in a grocery store but in different departments. We’ve been there for about 2 years and he always says hi and we’ve made small talk on numerous occasions. He has added me on FB and Instagram, and we’ve messaged some a year ago.
Well he just messaged me and asked if I wanted to go grab coffee or go for a walk sometime.
if I say yes- am I agreeing to more than friends? Because I only would like to be friends as I don’t feel attracted to him that way unfortunately. Yet I don’t want to ask or say yes only as friends because then maybe he will say that’s all he meant by it and then it would be awkward.
Guy from work asked me out for coffee and a walk. Is this a romantic date or could it be as friends?
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