One of the first things you need to know when sailing is where is the wind coming from as this influences where you can sail and how tightly you need to pull in the sails. In general, the closer to the wind you are sailing (e.g. close hauled), the tighter the sail(s) need to be pulled in. In a boat with centre boards these also need to be fully down for close hauled, part way up for a reach and most of the way up for a run.
For beginners a beam reach, which is sailing across the wind, is the easiest point of sail to start out on as you are unlikely to accidentally either tack or gybe.
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