으러 나가다

go out to do something

"-(으)러" marks the purpose and 나가다 is "go out", so: leaving the house or the building in order to do something. Six of these eight lines are about food — going out to eat, I'm going out for dinner tonight so I don't have to cook, this is my outfit for popping out to eat. The others are going out to take photos and going out to find opportunities for yourself. Compare 으러 나오다, which is the same trip described from the outside, once you've come out.