Who should message first?

last night a guy i'm flirting with messaged me and i responded to him and asked him how his day was. He opened my messages this morning but didn't respond. Do I wait for him to message me or should i send him a message?
wait for him
I text him first
Select gender and age to cast your vote:
A total of 9 votes were cast: 5 girls and 4 guys. See detailed results
Who should message first?
Post Opinion