1) Blankly 2) Fatuously 3) Uselessly 1) Fatuously 2) Foolishly 3) How a fool acts 4) How a goose acts 5) In a dumb way 6) In a fatuous way 7) In a pointless way 8) In a ridiculous manner 9) In a silly manner 10) In a silly way 11) In an off the wall manner 12) Sans sense 13) Senselessly 14) Vacuously 15) With zaniness 16) Without logic