"To attend the convention" means to go or be present at a meeting or gathering where people with similar interests or professions come together to learn, discuss, network, and share information. Full definition
I am a avid anime fan, but sadly no I have not attended conventions or anything to that nature. (animeloversdating.com)
I've always wanted to attend a convention as a reader, but have never been able to afford it. (hughhowey.com)
I've been attending conventions for at least the past 15 years — both as a fun activity with friends but also in a work capacity for coverage here. (brokenjoysticks.net)