Are you going to the event to socialize, meet friends or new people? Or are you going to the event for the activity: sports, concert, etc. Which one you choose changes your priorities: in the former, you’re there to converse with other people, in the latter you’re there to enjoy yourself, and others if you feel like it.
Beware of mistaking a social event for an activity event and vice versa: you may end up disappointed. If you want to ice skate, but no-one will go with you, but you also want to see someone you know, then schedule two events: go ice skating (activity event), then hang out with someone (social event), or hang out, then go ice skating.