Can you please shift a little? or Could you please shift a little?
which one of the two is correct?
Can you please shift a little? or Could you please shift a little?
which one of the two is correct?
Can is asking the question are you capable of it. Could is asking the question would you mind doing it. Both are grammatically correct. It's a matter of what you want to ask.
Both are grammatical, but the second is a little more polite. In practice, a native speaker would be more likely to say something like ‘Would you mind moving over a bit?’