Why are you directly asking to participate for some campaign? Are you seeking money? If you are new in this forum, you are allowed to do that such as Airdrop and referral as you said. You also can participate in some signature who accept newbies, but becareful for your posting. You still need to learn a lot if you participate the signature, other wise your posting will be deleted and you can not receive your reward. Read a lot, that is the key.