"Liga conmigo" for the guys. The informal translation is "flirt with me". This statement is made in the imperative form but it is not meant as a demand. The girls will wear "háblame" which means "talk to me".
The Spaniards like to give orders. Therefore, the imperative is a very
important tense in the Spanish language. A further peculiarity of the Spanish language is the exclamation mark, which is put upside down at the beginning of a sentence to introduce an imperative form.
Grammatical explanation: ligar = imperative form, conmigo is a composed form of the preposition "con" (with) + the pronoun of first person singular.
hablar = imperative form + pronoun of first person singular.