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Jake Gyllenhaal is keeping his romantic options open.

In the new issue of Us Weekly (on stands now), a source says the 30-year-old actor is becoming quite the man about town. After sharing breakfast with 90210's Jessica Lowndes, 22, at NYC's Greenwich Hotel on April 1, the Souce Code actor took another date to a party at NYC's Bowery Hotel later that night.

Gyllenhaal -- who ended his brief romance with Taylor Swift, 21, late last year --  then had lunch on April 3 at NYC's Locanda Verde with a Swift look-alike. "It seemed very friendly!" a witness tells Us.