I go to many craft beer festivals just to "taste" new beers. My main goal when attending beer festivals isn't to get drunk, but to taste a diverse list of new beers. It would be a big win for me if I could sample more and get drunk less.
If your goal sincerely is to taste more instead of feeling the effects of alcohol, why not spit the beer out? This is de rigueur among serious wine tasters for exactly this reason.
I have had great luck doing strenuous exercise, drinking moderate amount of water and taking some vitamin b 4-6 hours before drinking. Seems to double my tolerance.