The ornamental design for a seating side, as shown and described.
FIG. 1 is a top, front, left side perspective view of a seating side showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The horizontal lines near the bottom of the legs show a change of material from the wood grain above and is a lighter color from the upper part of the seating side.
The seat shown in dashed lines is included for the purpose of illustrating environment and forms no part of the claimed design.