Hm, how do I do then? Get this Hint messageThat is a good question, no you don't need a higher SL level unless you are aiming for the greyed out options of dialog. You can always proceed with all scenes no matter the RS or SL you just might have different outcomes.
and assuming that "the guy" is Marcus and I have already talked to him. If i click on him now, I only get the option "Nothing".