I think it's "Tú eras bajo." because "eres" is present and I'm pretty sure "eras" is the past tense of ser!
En el verano me gusta nadar (I like to swim in the summer).
En la primavera me gusta correr (I like to run in the spring).
Me gusta esquiar en el invierno.
Me gusta ir de compras en el otono (I like to go shopping in the fall).
Answer:
lol I dont know if theres a question exactly but I guess it's just saying to enjoy your weekend and have fun :)