The verb vestir (conjugation) means "to dress". The verb is irregular in the present tense. When conjugated, e changes to i (with the exception of nostoros and vosotros).

Yo visto mi niño cada mañana.
I dress my child each day.

The verb vestirse (conjugation) means "to dress oneself". It is a reflexive verb which is always accompanied by one of the pronouns me, te, se, nos, os. Sentences with this verb follow the pattern:

subject + pronoun + verb vestir

Mi niño ya se viste solo.
My child already dresses himself.

A few more examples:

Yo me visto.
     I get dressed.

Él se viste.
     He gets dressed.

(Nosotros) nos vestimos de negro.
     We'll dress in black.

Laura se viste muy bien .
     Laura dresses very well.