Socialists, at least my kind of socialists, support policies that work to guarantee the citizens of their countries basic rights, like transportation, to not be an exploited laborer (which includes ensuring safe work conditions, reasonable work hours, paid holidays, minimum wage), corporate regulation (which includes regulating product control and insuring environmental protection), disaster relief (reimbursement for losses), minority rights, infrastructural competency (quality roads, for instance), life (food, clean water, shelter and healthcare), etc.
They support a government that works in the benefit of the people and strives for each citizen to be treated fairly. Owning businesses is not at all as important a priority as many make it out to be, but basic services like the police, fire department, ambulance corps and probably certain means of transport should be state-owned.