welcome to COM @jarin, it's an easy contest to entry, just post an original comedy, nominate 2 people anyone will do since you're new to Steemit, tag the post #comedyopenmic and Add this to the Title of your post "Comedy Open Mic Round 15":

Rules are here: https://steemit.com/comedyopenmic/@comedyopenmic/4pmdkb-comedy-open-mic-round-rules

Round 15 Post: https://steemit.com/comedyopenmic/@comedyopenmic/comedy-open-mic-comedy-contest-round-15