Doubt it will make much difference, when I went to this fixture last season there were people wearing Spurs shirts told to 'cover up' at turnstiles to home sections. Having kids in Spurs shirts rocking up in the home end to take pictures of Harry Kane celebrating is what PL football is all about now.
Or just ignore them. But if Saints score first, be sure to shout "not so clever now are you, you North London yobbos!?"