After inspecting the outside frame, set it aside, preferably in an extra hive box as shown here, or on a frame perch bracket.  If you have neither, you may set the frame on the ground, leaning against the hive, but this is not recommended, as it could be invaded by ants, kicked as you further inspect the hive, or robbed by other bees.

If you set aside the outside frame in an extra hive box, cover it as shown here.