wave, gather, conform, abstain, keep an eye on, pay a visit, support, loan, behave, befriend, introduce, chat, knock off, meet (neighbors), host, invite, greet, congratulate, help, prepare, visit, share, pitch in, talk, babysit, look after, bandy, converse, welcome, pop by/over, chitchat, check (on/in on), redeem (oneself), respect (privacy), celebrate (traditions/differences), bolster (neighborhood spirit), entertain (neighbors), cultivate (friendship/flowers), bring (a housewarming gift), shoot the breeze, lend (tools/a hand), shovel (snow from a neighbor's driveway)
show, emblazon, decorate, coordinate, orchestrate, facilitate, entertain, host, greet (guests), welcome (guests), co-host, send out (invitations), array (refreshments), reserve (tables in a restaurant), organize (an event), set out (food), offer (drinks to guests), call (guests together for a toast), funnel (guests into a room), pay (caterer/musicians)
contract, tweak, set aside, fine-tune, order, dole out, coordinate, size up, check, book, formalize, schedule, communicate, hand over, set up, orchestrate, rescind, sort out, rule out, execute, allocate, specify, chart, allot, consult, make an offer, procure, firm up, invite, arrange, prepare, put forward, tick off, actualize, put in place, take care of, figure in/out, solidify, set about, see to, block out (time), chip in (toward a cost), assign (tasks), locate (a site/venue), reserve, overbook