These positive verbs that start with X, are easy to learn and fun to use. As with letter X words go, the positive words are rare, here are some to get you started.
List of positive verbs starting with X
X to sign or mark (especially with an X).
Xeriscape to landscape in a water-friendly manner.
Xerox to make a paper copy by means of a photocopier.
Xo to give hugs and kisses.
ps. See also positive adjectives starting with x and positive nouns starting with x.