What excercises are you doing if any? Also "Do 100 pushups challenge"

[Croyles]

Have you been doing any exercises and if yes what are they?
Do you get embarrassed if people catch you working out? I kind of do, but im hoping that will change soon.

Apart from my job (which isnt physically challenging) I have been a real lazy git for quite a while. My brother who's about twice as wide as I am has been doing this one hundred pushup (or pressups) challenge for a few weeks.

The goal is to follow the program and be able to do 100 consecutive pushups after 6 weeks of increasingly difficult sets (choose any 3 days a week), repeating a week if you didnt manage it.
He said it only takes up like 30 minutes a week to do it.
I decided to try even though the fact that my brothers stronger than me kind of put me down.

First I had to do an initial test to see how many proper pushups you can do in one go. I only managed 11, whereas my brother did something like 30.
But apparently my results were average and not substandard which lift me up a bit. After a day of rest I did the Day 1 of Week 1.

7 pushups
60 seconds rest
7
60 seconds rest
5
60 seconds rest
4
60 seconds rest
Then as many as you can (at least 5) - I did 10.

The number of pushups increase for every section every day (with a days rest inbetween).

Im now on week 3 day 1 which looks like this:

20
60 seconds
15
60 seconds
15
60 seconds
13
60 seconds
as many as you can (at least 20) - I managed 23 or 24, may have lost count.

Ive never been one to really stick to any workout routine but this is actually really fun..
Heres the website:
one hundred push ups