  Lusztig conjectured that the almost characters of a finite reductive group
are up to a scalar the same as the characteristic functions of the rational
character sheaves defined on the corresponding algebraic group. We propose in
this paper to verify this conjecture for the uniform almost characters of the
Suzuki and the Ree groups and to show that a conjecture of the same type holds
for the disconnected case of type B_2. We then state a conjecture on the
possible values of the uniform almost characters on unipotent elements in the
disconnected case of type F_4.
