Don’t say silly jokes. Wait until you get the job for that.
Don’t drink too much at the kiddush. Wait until you get the job for that.
Don’t talk to the regular people at the kiddush. Wait until you get the job for that. Talk to the machers.
After you get the job, you can say silly jokes, get plastered at the kiddush, and talk to whomever you like. Don’t worry too much about renewing your contract. The kinds of shuls that do kiddush prabas usually don’t renew contracts. If there’s good single malt, “ein safek yotzei miy’dei vaday”.