The easiest way to begin finding ancestors is to just look for the little blue "Record Hint" icons. These are found associated with an individual on the pedigree, or when on that person's "Person Page", they can be found in the upper right column. In addition, when you first log into FamilySearch, the "dashboard" page has a section that lists record hints available.
Record hints may point to birth, marriage, or death information, but can also include census records, military records, and even some outside sources like Find-a-Grave.
The record hints are correct "most" of the time, but still, be sure that the record hint actually belongs to your relative. There are a lot men with names like "William Smith" in the world!
Explore what the hint is about. It could be a US Census record showing where your ancestor lived and who was in the household. It could be a Draft Registration record that shows the physical description of your ancestor. Birth, marriage, death, and other records are given to you to look at and then determine if they indeed belong to your relative. Take time to explore everything in the record. You are seeing a bit of history about your ancestor.
Try attaching a Record Hint to your ancestor. These hints become "sources" that will add additional "story" about your ancestor's life events. If you need some help with this, be sure to contact us.
