Have statues/idols of Mary
Pray to Mary
Kneel before Mary
Light candles to Mary
Study Mary
View Mary as Mediatrix
View Mary as co-redemptrix
Have assigned non-Biblical titles to her not supported anywhere in the Word......among these....Morning Star (and we thought that meant Jesus), Queen of Apostles (though she herself was not one), Queen of Heaven; Spouse of the Holy Spirit.
Churches are named after her.
Mariology is the study of Mary.
Yet roman catholics don't worship Mary.