If you see people who have just reverted to Islam, try to talk and befriend them. They will most likely be so ever grateful. Give salam, smile and help them out. Be one of the reasons why they ought to commit themselves to be good Muslims.
Making friends with the reverts may save them from loneliness. As human beings, the reverts also have the social needs for friendship. Try imagine some reverts who are shunned away by their families and friends after embracing Islam, how would they feel?
It is in time like this that a friend in need is a friend indeed.