The first date

When I am having a date I usually do:

- take a shower, brush my teeth and shave, first of all

- get dressed, put some of my perfume and leave home

- buy some flowers before the meeting, so I need to have enough time to do it and I have to not to be late. (I have to come to there first.)

If you want to stick with what you wrote first, then you have to change the beginning :

When I am having a date I usually do the followings things

Good job anyway !

When I am having a date I usually do: - first of all I take a shower, brush my teeth and shave; - after that I get dressed, wear my perfume and leave home; - before meeting I usually buy some flowers, so I need to have enough time to do it and I have to not to be late. (I have to come to there first.)

Very good job, you have written it as though you were speaking.

You could do it this way:-

When I am going on a date I usually do this:
- first of all I take a shower, brush my teeth and shave;
- after that I get dressed, put on my aftershave and ensure I smell nice. Then I leave home;
- before meeting her I usually buy some flowers, so I need to have enough time to do it and I have not to be late. (I have to come to there first.)

When I go on a date I usually do the following: - first of all I take a shower, brush my teeth and shave. After that I get dressed, put on aftershave and then I leave home. Before meeting her, I usually buy some flowers, so I need to have enough time to do it so I am not late for the date.

Great!!!

When I am having a date I usually do: - first of all I take a shower, brush my teeth and shave; - after that I get dressed, wear my perfume and leave home; - before meeting I usually buy some flowers, so I need to have enough time to do it and I have to not to be late. (I have to come to there first.)

Here's another option:

To prepare for a date I usually shower, brush my teeth, and shave. After that, I get dressed, put on some cologne, and leave my house. I don't want to keep my date waiting, so I try to leave early enough to have time to buy some flowers.

Great, Alex!