Social Deadlines

Aim to: Welcome the new person as soon as you hear she has arrived. Don't wait until you've been in a meeting together or exchanged e-mails, says Jill Bremer, an executive image coach in Oak Park, Illinois.
If you are late: Apologize for being inconsiderate and then show interest in her background, ask how she likes the new job, or invite her to lunch.
Tip: As a company veteran, you'll have an easier time making the first move because the newcomer is probably overwhelmed and can't remember whom she has met.

Welcoming New Neighbors

Aim to: Stop by within a few weeks of their arrival, says Millie Downing, author of the Miss Conduct column in the Boston Globe Magazine. If they're busy unpacking, just say hello and visit later.
If you are late: It's never too late, but if the "new" neighbors have been around long enough to be heading up the block association and you still haven't met, you might ask a mutual friend to make the introductions.
Tip: Prepare a file of useful local information to bring over. Downing suggests delivery menus, area maps, event calendars, and the names and numbers of the best dry cleaner and plumber.