Paraphrase a previous post with only minor variations,add "I'm surprised no one has said this yet!",then PM several of your pals to post messages praising your intelligence,insight,and creativity.

Walk around work with your tie thrown over your shoulder.When someone mentions it,tell them you flew to the office in a biplane.

Walk around with your pants unzipped.If someone mentions it,tell them you just got your underwear out of the drier and are cooling them off.

When you are in an ethnic restaurant,for example Chinese,order loudly using a Chinese accent.Insist that all of your tablemates also use a chinese accent, to make the experience more "authentic".