Not sure what you're trying to do. A select by default takes shared locks, those locks are released as soon as the row is read (in the default isolation level anyway). Also, shared locks don't block shared locks, so two selects against the same table won't block each other.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability