ㄹ게요

I'll do it — announced to you

Announces what the speaker is about to do, with the listener explicitly in mind: 갔다 올게요 'I'll just be right back', 기회 드릴게요 'I'll give you another chance'. It only works for your own action and only about the future. 갈 거예요 is a flat statement of plan; 갈게요 is a commitment made to the person in front of you. Presenters use 해 볼게요 constantly to mean 'let's try this', where the speaker leads and the audience follows.

Register: polite; drop 요 (ㄹ게) with friends