Going to say good morning with 行っといで

Grammar Explanation: Contracting 行っておいで to 行っといで

Ninako confessed her feelings to Ren, even knowing he already has a girlfriend and would turn her down. After not seeing Ren during summer break, Ninako wonders if she’ll still be able to greet him normally. After a boy she turned down greets her normally, Ninako feels more confident.

つかさ:: 「ホラっ　仁奈子(になこ)　今度(こんど)はあんたの番(ばん)だよっ」; "Hey, Ninako, now it's your turn."; 「そろそろ連(れん)くん　来(く)るんじゃない？」; "Won't Ren being coming soon?"; 「行(い)っといで！！」; "Go for it!!"