The ASL sign for "Trees": use both hands to make the sign for "tree" by touching your fingertips together and extending them upwards, then add an "s" by bending your dominant hand's index finger and flicking it outwards from the other hand's fingertips. Quick step-by-step...
To sign the word “trees”, use both hands to make the sign for “tree” by touching your fingertips together and extending them upwards, then add an “s” by bending your dominant hand’s index finger and flicking it outwards from the other hand’s fingertips.
