Just wear. Decent surfaces.
1795 Flowing Hair Silver Dollars are known in two different major varieties: 2 Leaves and 3 Leaves. To determine the variety, simply look at the leaf clusters beneath the eagle's wings -- the clusters will contain either two or three leaves.
In terms of relative rarity, the 2 Leaves variety is approximately three times as rare as the 3 Leaves variety. Mint State examples of both major varieties are rare and valuable. Surprisingly, the PCGS Condition Census is comprised entirely PCGS MS64 and better examples. The best examples are a pair of PCGS MS65s
Robert Coulton Davis Collection - New York Stamp & Coin 1/1890:427 - Lawrence Stack Type Set - Stack's, sold privately in 1/2003 - D. Brent Pogue Collection
William Cutler Atwater Collection - B. Max Mehl 6/1946:187 - Louis G. Stirling Collection - Frank Mumford Stirling Collection - Heritage 1/1986:1328 - Anthony Terranova - Bowers & Merena 3/1989:1942 - Superior 5/1991:948 - Lawrence Stack Type Set, sold privately in 1/2003 - D. Brent Pogue Collection